What's the best mattress in a box 2025? We've slept on dozens — these are our top 9 picks
The best mattresses in a box, based on the 100+ models that our experts have tested and reviewed
The majority of beds tested by our expert team are mattresses in a box, meaning they’re compressed and rolled for easy shipping. While convenient, purchasing a boxed mattress online can feel like a risky prospect. That’s where we come in — after testing more than 100 models, we're sharing our picks for the best mattresses in a box for your needs and budget.
These mattresses are compressed by a large machine, then wrapped in a heavy-duty plastic before being boxed. This seems extreme, but it has no impact on comfort or support. In fact, many of the best mattresses we've tested are beds in a box.
However, the convenience of buying online often means dealing with a setup process that can have its own quirks. But if that doesn't deter you, now's a great time to shop — you'll find great savings on all of our top boxed bed picks during this year's Black Friday mattress sales.
New to the list are the DreamCloud Classic Hybrid (best overall), Nectar Premier (best memory foam), and the Zinus Green Tea Memory Foam (best under $300). This comprehensive update also features updated scores and notes from mattresses we' retested, as well as a breakdown of our revised mattress methodology.
1. The best mattress in a box overall


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Reasons to avoid
Quick summary
The DreamCloud Classic picks up where the now-discontinued DreamCloud Luxury Hybrid left off. A winning mix of comfort and value earns it the title of this year's best mattress in a box.
DreamCloud's flagship model didn't change much design-wise — and nor did it have to — but a more luxe appearance and a new cooling cover enhance what we've already considered one of the best hybrid mattresses out there.
Although DreamCloud rates its Classic Hybrid as 8.5 out of 10 on firmness, our testing panel found it closer to medium (6/10). Side and back sleepers will benefit from ample cushioning at the hips and shoulders, paired with proper alignment. Stomach sleepers, on the other hand, will find it too soft.
The DreamCloud Classic's performance is on par with some of the best luxury mattresses we’ve tested, which is quite impressive, considering it regularly sells for $699 in a queen and comes with a 365-night trial and lifetime warranty. (There are higher-end sleep brands that aren't nearly as generous with their extras.)
Read what we liked, didn't like, and how to buy it ▼
The DreamCloud Classic doesn't sacrifice value for quality. It's our overall winner because it combines the budget-friendly pricing we expect of a boxed mattress with the elegant comfort associated with a higher-end bed.
Our review: in more detail
Support and comfort: ★★★★
Pressure relief: ★★★★
Temperature regulation: ★★★½
Motion isolation: ★★★½
Edge support: ★★★★
Value for money: ★★★★★
The DreamCloud Classic is a 12" hybrid comprised of therapeutic memory foam, adaptive support foam, and a bed of 8" individually-wrapped coils. Instead of a cashmere-blend cover, the quilted top now features cooling fibers to enhance temperature regulation.
The consensus among our testers is that the DreamCloud Classic Hybrid is an 'incredibly comfortable' mattress for side sleepers who want cushioned relief for their shoulders, hips, and knees while maintaining proper alignment. Similarly, back sleepers will find the quilted top fits the nooks of their spines nicely, alleviating pressure from the lumbar.
However, if you're a stomach sleeper, the DreamCloud Classic will have too much give along your midsection. We'd recommend going with the Plank Firm (#6) or paying a few hundred dollars extra for the DreamCloud Classic Memory Foam Mattress (also tested), which is decidedly firmer (8/10).
The DreamCloud Classic Hybrid is a sound choice for sleepers who want to indulge in luxury comfort without worrying about how to pay for it
The DreamCloud Classic Hybrid should keep most sleepers at a comfortable temperature; however, if you struggle with frequent hot flashes, the Bear Elite (#4) may serve you better. Still, our thermal imagery camera showed that the DreamCloud kept our tester at a neutral temperature for 15 minutes, releasing heat at a rate of 1.12°F per minute.
The DreamCloud's reinforced perimeter yields sturdy edges for sitting on or lying against — and while surface motion dissipates quickly (within 1.5 seconds), light sleepers who share a bed are still likely to be woken up by their partner's movements.
While it's not quite on the level of the Saatva Classic (our top-rated mattress of the year overall), the DreamCloud Classic Hybrid is a sound choice for sleepers who want to indulge in luxury comfort without worrying about how to pay for it. At a mere $699 for a queen during regular mattress sales, you'd be hard-pressed to find a better combo of value and comfort anywhere else.
What we like about it...
Why you can trust Tom's Guide
✅ A 5-star mattress at a 3-star price: Don't let the DreamCloud Classic's boxed bed status and mid-range price fool you. We recommend it as an alternative to the Saatva Classic if you want a luxury bed on a budget. (Plus, it comes with a 365-night trial and a lifetime warranty.)
✅ A keen balance of softness and support for side and back sleepers: The combo of foams and wrapped innersprings produces a medium level of tension, relieving pressure from your shoulders, hips, and lumbar while promoting proper alignment, whether you're on your back or side.
✅ Maintains a 'just right' temperature: Thanks to the updated cooling cover and the airflow from its coils, the DreamCloud Classic regulates heat nearly as well as some of the best cooling mattresses we’ve tested. (However, our one quibble here is the slow cooling rate after getting up from the mattress.)
What we don't like about it...
❌ Some sleepers will miss its previous firmness: Previous versions of the DreamCloud Hybrid were decidedly firm, but we noticed the Classic is not as unyielding (despite how it's advertised). That's good news for side sleepers and lighter people, but stomach sleepers and those who weigh over 200lbs may miss that. (In that case, the Plank Firm below will be more your speed.)
❌ Light sleepers will want more motion isolation: If you share a bed with a restless partner or an overzealous pet, you'll feel a lot of their movements on the DreamCloud Classic Hybrid if you're not a deep sleeper. The all-foam DreamCloud Classic and the Nectar Premier (#3) perform better in this area.
❌ The updated design does away with mattress handles: Yes, the DreamCloud Classic looks sleeker than its predecessors, but it's at the expense of practicality when it comes to rotating your mattress.
When, where and how to buy
Hybrids tend to cost more than all-foam mattresses, especially luxe-feeling ones like the DreamCloud, but this mattress consistently comes in at a mid to lower mid-range price. It stands out for undercutting most of the competition and delivering excellent value for money.
There's an evergreen DreamCloud mattress sale, so you can ignore the Total Value pricing (DreamCloud's alternative to the MSRP). A queen will typically cost you between $649 and $699. The cost has fluctuated somewhat this year, but even at the highest end of that price barrier, it's still a fantastic value.
To sweeten the deal, DreamCloud has been offering a free accessory set that includes pillows, sheets, and a mattress protector for the last several months. This is convenient if you're sizing up or down, or buying a less-common size (like split king).
Because it's from the same parent company as the Nectar (also on this list), it comes with the same outstanding extras. You'll have a year to try it out before fully committing, and it's backed by a Forever warranty.
DreamCloud mattresses are also sold on third-party sites, including the DreamCloud Amazon store. While the prices here tend to echo the brand's prices, you can sometimes spot good deals on older models.
2. The best cheap mattress in a box


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Reasons to buy
Reasons to avoid
Quick summary
The Siena Signature 10" Memory Foam Mattress is one of the least expensive options on our list, but it holds its own among higher-priced rivals. Then again, it comes from Resident Home, the parent company of DreamCloud and Nectar (also represented on this list).
This is a supremely supportive bed with subtle contouring — a great fit for back and front sleepers. (Side sleepers, consider the Zinus at #9 for a plusher budget alternative.) It also boasts consistent edge-to-edge support, superb motion isolation, and impressive temperature regulation for its class.
At under $400 for a queen-size, the Siena is priced right for college students and other budget-conscious shoppers, while also offering one of the longest trial periods available (180 nights). A 10-year warranty also applies.
Read what we liked, didn't like, and how to buy it ▼
The Siena Signature Memory Foam Mattress is proof that you don't have to shell out a lot of money for quality. It's the best budget mattress we've tested.
Our review: in more detail
Support and comfort: ★★★½
Pressure relief: ★★★½
Temperature regulation: ★★★
Motion isolation: ★★★★½
Edge support: ★★★★
Value for money: ★★★★
How good can a cheap all-foam mattress-in-a-box really be? Very good, in the case of the Siena Signature, a basic memory foam mattress from Resident Sleep — yes, the brand behind the DreamCloud Classic (#1) and the Nectar Premier (#3).
This 10" mattress has two internal foam layers, yielding a much firmer surface than Siena advertises. Rated as a 6.5 out of 10 on the brand's firmness scale, our testing panel rates it an 8/10 instead. We consider it a firm mattress.
Its robust edge-to-edge support isn't typical of memory foam mattresses. You'll lie on top of the Siena rather than sink into it, resulting in even support to hold your body in a straight line while reducing pressure on your lower back. This translates to a 'soothing' experience for back and front sleepers.
But as our objective testing and real-world experience revealed, the thin layer of comfort foam provides limited cushioning, especially along the shoulders. It's not a side sleeper-friendly bed, so in that case, we'd recommend the softer Zinus Green Tea Memory Foam (#9) or the similarly-affordable EGOHOME Black 12" Hybrid (also tested) if you're a heavier side sleeper.
How good can a cheap all-foam mattress-in-a-box really be? Very good, in the case of the Siena Signature
The Siena maintains a uniform level of firmness from edge to edge, allowing you to sleep right up to the edge to maximize space. You shouldn't have any issues getting in and out of bed or when sitting on the edge to get dressed.
The dense foams absorb all but the most vigorous of movement; even the most intense movements didn't bother our testers. This bodes well for couples or those who share a bed with their pets or children.
Notably, the Siena Signature exceeded our expectations for temperature regulation. Although we detected lingering warmth with our thermal camera, it otherwise maintained an even temperature. Still, hot sleepers may find it a bit stifling, so try the CopperFlex Pro Hybrid Mattress (also tested) for a reasonably priced cooling option.
It's unlikely that the Siena Signature will be your 'forever' mattress, but as a guest bed or a 'right now' mattress, out of the box, you'll get your money's worth. The included 180-night trial is well above the industry average, too.
What we like about it...
✅ It's budget-friendly: At under $500 for the largest size (king), the Siena is a bona fide budget buy if you're not willing or able to splash out the cash for something else, especially if this is meant for temporary or irregular use.
✅ It's supportive for stomach sleeping: We consider the Siena Signature one of the best mattresses for stomach sleepers because its firmer tension prevents your midsection from sinking (a common issue with front sleeping).
✅ The temperature regulation is (surprisingly) good: Unless you're a very hot sleeper, expect the Siena Signature to maintain a steady temperature without the excessive heat retention we normally see from cheap foam beds.
What we don't like about it...
❌ It lacks deep pressure relief: The Siena Signature's pressure relief is subtle, but that won't be enough for side sleepers or those who need extra cushioning to alleviate back and joint pain.
❌ You need an even firmer bed feel: If you want virtually no contouring, we suggest the dual-sided Plank Firm (#6), which has an extra firm side that's rated 10/10. It also has a beefier build than the Siena Signature, which could make it a better choice if you're seeking a long-term mattress.
❌ Questionable durability: While we rate it well for initial durability, the simple two-layer design of the Siena Signature may not have the longevity of a more complex construction. (On the plus side, it does come with a 10-year warranty.)
When, where and how to buy
The Siena Signature is an excellent value for money and a great cheap bed in a box from a trusted name. It's perpetually discounted, and the Siena mattress sales rarely change.
Still, at $359 for a queen-sized mattress, we're not complaining. The 180-night trial is also remarkable for this price point — and well beyond the industry average. The 10-year warranty is standard, but still decent.
For the most part, Siena keeps the sale year-round. However, we have spotted some better discounts in recent months, with Black Friday 2024 reducing a queen to $379 direct from Siena. We've seen it for even less at the Siena Amazon store.
3. The best memory foam mattress in a box


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Reasons to avoid
Quick summary
The Nectar Premier has dethroned its entry-level sibling, the Nectar Classic, to become the best memory foam mattress we've ever slept on. It represents a happy medium for shoppers who want a taller, plusher mattress without paying a lot for a top-of-the-line model like the Nectar Luxe.
The Nectar Premier features an additional inch of pressure-relieving memory foam compared to the Nectar Classic, resulting in a slightly softer surface with more contouring for your touch points. It was a hit with the side and back sleeping testers on our panel; stomach sleepers will prefer the Siena (#2).
It's also an excellent mattress for bed-sharers — it dampens most movements and doesn't sleep particularly stuffy. Just beware of the edge support, which is passable but not the sturdiest we've tried. (A hybrid like the DreamCloud Classic at the top of this list will be a better bet if you need strong edges.)
Read what we liked, didn't like, and how to buy it ▼
The Nectar Premier is billed as the brand's most popular mattress, and it's easy to understand why — it's sumptuous without being over the top, and at a fairly reasonable mid-range price point. (A queen is usually on sale for $949.)
Our review: in more detail
Support and comfort: ★★★½
Pressure relief: ★★★½
Temperature regulation: ★★★½
Motion isolation: ★★★★
Edge support: ★★★★
Value for money: ★★★★
If a Tempur-Pedic is out of your price range, the Nectar Premier delivers a similar level of cozy pressure relief at a much lower cost — and with better extras, too. (Nectar provides a full-year trial and a lifetime warranty.)
When we first lay on the Nectar Premier Mattress, we were struck by its plush feel. However, the top memory foam comfort layer harmonizes with the underlying support foams to keep the spine aligned while easing pressure in the joints and lower back. We rate it a 6.5 out of 10 on the firmness scale, which is on par with Nectar's assessment.
As cushy as this mattress is, we never felt 'stuck' inside of it — in fact, we were able to move around with relative ease. Whether we were on our backs or our sides, the Nectar Premier offered tremendous support with ample contouring for our touch points. However, we don't recommend it for stomach sleeping.
If a Tempur-Pedic is out of your price range, the Nectar Premier delivers a similar level of cozy pressure relief at a lower cost
All-foam mattresses tend to trap heat, but the Nectar Premier aims to offset this with a specialist cover woven with cooling fibers. In practice, this resulted in relatively temperature-neutral sleep for our testers, and it even cooled down by 1.4° F after 15 minutes of lying on it, per our thermal imaging.
Meanwhile, the motion isolation is outstanding. While spirited tossing and turning could disturb lighter sleepers, our objective drop tests revealed an average decay rate of 3.05 seconds. In other words, the Nectar Premier dampens movement better than many other mattresses we've tried.
Edge support is good, but there is a noticeable sink when you sit on the sides or corners. This sinkage was less apparent when we were lying down, but we'd still rate the Siena (#2) and the Plank Firm (#6) above the Nectar in this category among all-foam beds in a box.
What we like about it...
✅ A Tempur-Pedic-style mattress for less: The Nectar isn't the cheapest mattress on this list, but at a mid-range price point, it's an incredible value, especially once you factor in the extras.
✅ A beautiful blend of comfort and support: With a firmness rating between 6.5 and 7 (out of 10), the medium-firm Nectar Premier will appeal to side and back sleepers who want to comfortably sink into their mattress without sacrificing support.
✅ A dream for couples: Whether you bed share with your partner, kids, or pets, the Nectar Premier's superb motion isolation will leave you largely unbothered by their movements (and vice versa). Plus, it doesn't trap as much heat as other, cheaper all-foam mattresses.
What we don't like about it...
❌ Too soft for stomach sleepers: If you can't help but sleep on your front, you'll have a hard time with the Nectar Premier. Try the Plank Firm (#6), which has a dual-sided design so you can choose the firmness you need. If you're a lighter build, the Nectar Classic (also tested) should suit you well here, too.
❌ It won't be cool enough for everyone: While the Nectar Premier doesn't trap as much heat as many other full-foam beds, a specialty cooling model like the CopperFlex Pro (also tested) will be a better mid-range all-foam choice if night sweats disrupt your sleep.
❌ Less support for heavy people: The Nectar Premier has a max weight capacity of 650lbs, which is just above the average (500lbs). Couples with a heavier combined weight should consider the Plank Firm below; it's sturdier and has a higher weight limit.
When, where and how to buy
You can ignore the MSRP (or Total Value) at Nectar, because these beds are never sold at full price.
A queen will typically set you back around $949 during the evergreen Nectar mattress sale. That's considerably cheaper than rivals Casper, Purple, and Tempur-Pedic. Add to that a generous one-year trial period to decide whether it's right for you and a lifetime warranty to back up your purchase.
Nectar's sale prices rarely change, even over the major holidays, so we think it's always a good time to buy. The occasional flash sale might net you an extra discount (usually 15% off), but these are hard to predict.
We have sometimes spotted some good deals from third-party retailers, including the Nectar Amazon store. But for the most part, you'll find consistent pricing on the Nectar Premier.
4. The best cooling mattress in a box


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Quick summary
The Bear Elite Hybrid ranks at the top of our guide to the best cooling mattresses. In addition to best-in-class temperature regulation, it also delivers targeted relief and support, with three firmness levels available to suit nearly every type of sleeper.
The brand's thoughtful use of Celliant fibers in the optional cover offers exceptional cooling along with recovery technology to promote overall well-being. That said, you'll be paying a premium for that cooling tech — with or without the upgrade.
If you're working with a smaller budget but need relief from overheating, the Brooklyn Bedding Copperflex Pro Hybrid (also tested) is a capable option at a lower price.
Read what we liked, didn't like, and how to buy it ▼
Without the upgrade, the Bear Elite Hybrid is a supportive mattress that can be tailored to your comfort — but for the very best restorative sleep this cooling model has to offer, we strongly suggest leveling up to the Celliant cover.
Our review: in more detail
Support and comfort: ★★★★½
Pressure relief: ★★★★½
Temperature regulation: ★★★★★
Motion isolation: ★★★
Edge support: ★★½
Build quality: ★★★★
For chronically hot sleepers, there's no better mattress-in-a-box we've tested than the Bear Elite Hybrid. This 5-layer, 14" tall mattress is available in three firmness levels (soft, medium, firm), with the option to add a Celliant-infused cover for additional cooling.
We re-tested the medium Bear Elite Hybrid and rated it at 6 out of 10 on the firmness scale, in line with the brand's self-assessment. The combo of high-density foams and zoned coils provided proper support and sufficient contouring in any position. However, we recommend going firmer if you're heavier or a strict stomach sleeper, or softer if you're smaller or favor your side.
If you're a combi sleeper, we think the medium tension will suit you well — not only for its ample contouring and all-around support, but also for its ease of movement. Our review panel could move about without feeling stuck inside the mattress, while our objective weight test revealed a one-second recovery time, indicating a highly responsive surface.
For chronically hot sleepers, there's no better mattress in a box we've tested
The Bear Elite Hybrid comes standard with a quilted moisture-wicking cover, but the Celliant-infused cover (available as an upgrade) is the standout feature of this cooling mattress. This synthetic fiber converts body heat into infrared energy, which is purportedly reflected into the body for more restorative sleep.
Our thermal camera recorded a 10.5°F increase when one of our testers lay on the mattress for 15 minutes — and while that would typically be a concerning statistic for us, we also noticed a 7.2°F drop a minute after she got off the bed. Most importantly, our lead tester didn't feel stifled or sweaty, a testament to Bear's cooling tech.
The Bear Elite absorbs motion well on impact, but residual movement lingers long enough to potentially disturb a co-sleeper. (Notably, this was less noticeable in our earlier drop test on the queen-size model than in our recent test on a full-size.)
Meanwhile, the edge support is okay, provided you're not pushed to the brink when sleeping or sitting on the perimeter for an extended period. If you need solid edge-to-edge support, there are much better options, such as the Plank Firm (below) or the Saatva Classic (our top mattress of the year overall).
What we like about it...
✅ Exceptional cooling, especially with the Celliant cover: If night sweats and hot flashes regularly prevent you from achieving quality sleep, the cooling prowess of the Bear Elite Hybrid with Celliant-infused cover will do a lot to quell those disturbances.
✅ Three firmness options to choose from: Similar to the WinkBed (#7), the Bear Elite Hybrid is available in three different firmness levels (soft, medium, firm) so you can tailor it to your sleep style and body type.
✅ Side carry handles for easy maneuvering: This may seem like a small detail, but most mattresses-in-a-box skimp on side carry handles, possibly deterring people from rotating their mattresses (a key step in helping them last as long as possible).
What we don't like about it...
❌ A premium cooling choice: The Bear Elite Hybrid is a premium cooling mattress with a price tag to match. If overheating is an occasional disturbance and not a nightly thing, you'd be better with a non-specialist bed that doesn't hold a lot of heat (most likely a hybrid).
❌ Noticeable motion transfer: While we acknowledge that this could be less of an issue on a larger surface, our objective motion isolation tests indicated quick absorption of movement but lingering reverb for several movements thereafter. (Generally, all-foam models perform better here.)
❌ Weak edges for a premium bed: The only drawback we found in our Bear Elite Hybrid testing was the lack of consistent edge support, especially when pushed to the brink. For reliable edge-to-edge stability, choose the DreamCloud (#1) — or think outside of the mattress-in-a-box and go with the Saatva Classic.
When, where and how to buy
Among cooling mattresses, the Bear Elite Hybrid is one of the better value options out there, sitting at the upper-mid range to premium pricing bracket after an evergreen discount. It also comes with a 120-night trial and an unbeatable lifetime warranty.
The standard Bear mattress sale cuts 30% off the retail price, which brings the cost of a queen to $1,799 (was $2,570). Add the Celiant cover and it rises to $1,899 (was $2,712).
Bear sometimes increases the discount to 35% off, or even 40% off for special occasions. However, this typically only happens during the major sales days, and compared to some other brands, these offers are rare.
5. The best mattress in a box for side sleepers


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Reasons to buy
Reasons to avoid
Quick summary
The premium Helix Midnight Luxe is our favorite mattress for side sleepers, featuring a plush pillow-top and enhanced lumbar support. Those elements culminate in a pleasant sleep experience for back sleepers, as well.
The middle child in the 3-model Helix Midnight lineup possesses the best mix of performance, luxury, and overall value versus its siblings. If you're on a tighter budget, the Helix Midnight Core is equally supportive, though not as luxuriously plush.
As a hybrid, it doesn't provide the profound sink-in sensation of a full-foam bed, but the Midnight Luxe has upper memory foam layers to offer gentle contouring along the shoulders, hips, and knees — key pressure points that affect side sleepers most.
The Midnight Luxe also stands out for its minimal motion transfer, making it a good choice for couples and families
Read what we liked, didn't like, and how to buy it ▼
Designed and crafted for side sleepers, we feel the Helix Midnight Luxe Mattress hits the brief while proving that luxury sleep can come in a box.
Support and comfort: ★★★★½
Pressure relief: ★★★★★
Temperature regulation: ★★★★½
Motion isolation: ★★★★½
Edge support: ★★★★
Value for money: ★★★★
Our review: in more detail
Our lead tester slept on a queen-size Helix Midnight Luxe for seven weeks. Helix rates it a 5-6 (out of 10) on the firmness scale. We think it's a solid 6 out of 10, a true medium mattress.
The premium pillow-top and ultra-responsive memory foam layers yield incredible pressure relief, while the steel coils (reinforced in the center for alignment) prevent sleepers from sinking too deep. Our lead tester avoided the 'dead hip' she's prone to developing when resting on her side for too long, and her heavier back-sleeping partner also felt comfortable and supported.
Combined with top-notch motion isolation and passable edge support, the Helix Midnight Luxe is a great mattress for couples with diverse sleep needs.
The premium pillow-top and ultra-responsive memory foam layers yield incredible pressure relief
Although our testers didn't overheat on this mattress, hot sleepers may want to consider an upgrade to the GlacioTex cooling Pillow Top cover for an extra $199 across all mattress sizes. This specialty material is cool to the touch but yields a slick surface that could make dressing your bed a hassle.
There's also an optional ErgoAlign layer ($199) for even stronger lumbar support, which another one of our testers had the chance to try while visiting 3Z Brands in Arizona (she was a fan). These upgrades can elevate the bed's overall performance, but they'll add to an already-high price.
One notable addition to the Helix Luxe mattresses is the appearance of side carry handles, something we missed on our previous test model.
What we like about it...
✅ It's designed for dedicated side sleepers: A plush pillow-top and multiple comfort foam layers provide plenty of pressure relief, and the reinforced springs in the middle of the bed keep everything properly aligned.
✅ But it's also comfortable for back sleepers: Like to flip-flop between your side and your back? No problem. The Midnight Luxe's medium-firm bed feel will keep you supported, either way. It also makes bed sharing a fair bit easier.
✅ It eats up movement: Restless partner? Overzealous pet? The Helix Midnight Luxe dampens movement so well, you'll feel like you're sleeping solo.
What we don't like about it...
❌ Too plush for stomach sleepers: This side sleeper mattress is back sleeper-friendly, but stomach sleepers won't find it firm enough for their tastes and should check out the Plank Firm (#5) or Avocado Green (#8) instead.
❌ There are cheaper alternatives: The Midnight Luxe is a premium mattress, even on sale. The Helix Midnight Core offers similar side sleeper comfort for less, although you'll miss out on the plush pillowtop. We also like the Nectar Premier (#3) for side sleepers who want to stay within a reasonable budget.
When, where and how to buy
Regular Helix mattress sales cut between 20% and 25% off. We've seen as much as 30% off around major holidays, but this is incredibly rare.
Still, you'll never have to worry about buying this mattress at the list price. A queen has an MSRP of $2,373, but we see it on sale for $1,899 most of the time. If you aren't in a rush to buy, it's worth waiting for the 25% discount to kick in — or even our semi-exclusive 27% coupon.
You have 100 nights to test it out. Better yet, Helix Luxe mattresses come with a lifetime warranty for life. In-room delivery is available in select ZIP codes for an additional cost.
6. The best firm mattress in a box


Specifications
Reasons to buy
Reasons to avoid
Quick summary
If you're looking for the best firm mattress, then they don't come much firmer than the Plank. It has a double-sided all-foam design; one side is firm and the other is extra-firm. It offers exceptional support — from head to toe, edge to edge, and corner to corner.
For stomach sleepers, this ensures the hips are held comfortably aligned with the spine, while back sleepers who prefer a firmer feel will appreciate how it lifts the lower back. (For back sleepers who prefer some cushioning, try the Siena at #2.)
The lack of sink does mean pressure relief is minimal, with no cushioning for side sleepers, unlike the Helix Midnight Luxe at #5.
Read what we liked, didn't like, and how to buy it ▼
The Plank Firm isn't what you'd expect from a memory foam mattress-in-a-box, but its ultra-firm surface results in a super-supportive feel all-around.
Our review: in more detail
Support and comfort: ★★★½
Pressure relief: ★★★½
Temperature regulation: ★★★½
Motion isolation: ★★★★½
Edge support: ★★★★★
Value for money: ★★★★½
We slept on a full-size Plank Firm Mattress for over a month, spending more than three weeks on the extra firm side and three weeks on the firm side.
At the end of the testing period, our panel agreed the firm side feels like 8 (out of 10) on the firmness scale, while the extra firm side is a 9. That's very close to the firmest a mattress can be, albeit slightly under Brooklyn Bedding's assessment of 10/10.
The Plank Firm is exceptionally flat compared to the bouncy quilting of the DreamCloud at #1 — especially if you switch to the extra firm side. There's almost no sink, with minimal quilting providing some pressure relief. We found back sleeping comfortable on both sides, while our front sleepers preferred the firm feel, as the extra firm was just a touch too hard on the stomach.
There's no doubt that this is going to be a divisive mattress
Side sleepers will also prefer the firm feel, although dedicated side sleepers should consider a plusher mattress altogether, such as the Nectar (#3). Even the Siena at #2 would be better, as it has some squidgy cushioning compared to this.
One advantage of the Plank's firmness is edge support: it's as strong at the sides as it is at the center. Combined with excellent motion isolation, this is a good choice for co-sleepers who want to use the entire surface of the mattress.
However, the Plank Firm can sleep a little warm, and hot sleepers should consider upgrading to the GlacioTex cooling cover. There's no doubt that this is going to be a divisive mattress. Our testers were impressed, but if you're after sink-in coziness, look elsewhere.
What we like about it...
✅ The firmest mattress we've tested: The Plank Firm is the "firmest, flattest" mattress on the market, with two sides offering almost no sink. It'll appeal to that niche of sleepers who like feeling as if they're sleeping on, well, a plank of wood.
✅ Head-to-toe support: The Plank Firm lifts the body and holds everything — from the head to the tips of your toes — in alignment. You don't have to worry about your lower back sinking and causing discomfort.
✅ Edge support is exceptional: You can sprawl across the surface of the Plank Firm mattress and never feel like you're going to slide off. It's some of the best edge support we've found in a mattress.
What we don't like about it...
❌ Uncomfortable for side sleepers: While the Firm side of the Plank offers a tiny bit of cushioning, this is not a mattress for side sleepers. The Siena (#2) is better for side sleepers who want a firm feel.
❌ You sleep warm: The Plank doesn't have awful heat retention, but it can warm up overnight. For warm sleepers seeking a firmer mattress, try the organic Avocado Green (#8) or the specialist Bear Elite Hybrid (#4),
❌ You want a luxury finish: The Plank Firm keeps a simple and streamlined look, and the lack of quilting contributes to the firm feel. But if you want a mattress with a more inviting design, consider the DreamCloud (#1).
When, where and how to buy
Plank Firm is owned by Brooklyn Bedding. The queen has an MSRP of $1,332, but you'll frequently see it on sale for $999 after an evergreen 25% discount.
We often see the saving increase to 30% around the major holidays, such as Presidents' Day, Memorial Day, and Black Friday. This deal pops up semi-regularly, so if you don't need your new mattress right away, there's an advantage to waiting.
You can choose to upgrade the Plank Firm Mattress with a cooling cover crafted with GlacioTex materials, which will add roughly $100 to the overall price.
All sizes of the Plank Firm come with a 120-night trial and a limited lifetime warranty.
7. Best mattress in a box for hip and back pain


Specifications
Reasons to buy
Reasons to avoid
Quick summary
The WinkBed bed is our pick if you need a mattress for back pain. It provides cushioned comfort, reliable support, and a specialized lumbar zone to foster proper alignment and relief from nagging aches.
You shouldn't have a problem finding a WinkBed that's right for you. It comes in three firmness levels — soft, luxury firm, and firm — along with a plus version that's designed for sleepers over 250lbs. (We rate the WinkBed Plus as the best mattress for heavy people.)
We tested an original WinkBed in a luxury firm, which should suit the majority of sleepers. According to the brand, it's meant to replicate the feel of a luxury hotel mattress. (We're inclined to agree.)
While it scores high in edge support and motion isolation, we're reluctant to recommend the WinkBed for very hot sleepers. (Try the cooling Bear Elite at #4; it also comes in multiple firmness levels.)
Read what we liked, didn't like, and how to buy it ▼
The WinkBed is reminiscent of the Saatva Classic, but with a more affordable price tag. It’s one of the few boxed beds that can genuinely hold its own against our top mattress of the year.
Our review: in more detail
Support and comfort: ★★★★
Pressure relief: ★★★★½
Temperature regulation: ★★★★
Motion isolation: ★★★★½
Edge support: ★★★★½
Value for money: ★★★★
The 13.5" WinkBed Hybrid Mattress has a Tencel cover, a Euro pillow top, multiple comfort foam layers, and a 3-zoned individually wrapped coil system. The WinkBed Plus adds a layer of zoned latex foam and triple-tempered coils.
We slept on a luxury firm WinkBed, and agreed with its 6-7 firmness rating (out of 10). The sturdier coils in the middle third of the mattress supported our lumbar, regardless of how we lay, whilst the upper comfort layers relieved key touch points (shoulder, hips, knees). Our lead tester was pain-free during the three weeks she slept on the WinkBed.
But what if you need a plusher feel, or more pushback? The WinkBed comes in soft or firm versions to suit a range of preferences. Meanwhile, the WinkBed Plus has a max weight capacity of 900lbs; by comparison, the Saatva Classic can support up to 600lbs total.
The WinkBed is competitively priced while providing luxury comfort that soothes sore joints
With its springs and breathable Tencel cover, the WinkBed should sleep at a comfortable temperature for most people. If overheating causes unpleasant wakeups, consider the Bear Elite (#4) or the Helix Midnight Luxe with cooling upgrades (#5).
In our objective and real-world tests, the WinkBed dampened most movements well. The edges were strong enough to keep our tester steady when sitting or lying down, and we imagine the edge support system is even more robust with the WinkBed Plus.
Specialist mattresses for back pain often command a small fortune, but the WinkBed is competitively priced while providing luxury comfort that soothes sore joints. We found it supportive in all the right places, and the ability to choose your desired firmness is a nice perk.
What we like about it...
✅ Support and relief in all the right places: The WinkBed delivers targeted support and pushback in the appropriate areas, with firmer coils in the center to promote a neutral spine. The comfort layers also mold the joints nicely.
✅ Four firmness options: Similar to the rival Saatva Classic, the WinkBed comes in soft, luxury firm, and firm — but it also includes a model that comfortably accommodates plus-sized sleepers.
✅ Super strong edges: No need to worry about sagging or sinking. The reinforced perimeter coils of the WinkBed will keep you supported whether you're sitting or lying down.
What we don't like about it...
❌ May still not be enough for hot sleepers: The Tencel cover is soft and breathable, but we don't think it'll be enough for people who struggle with overheating at night.
❌ Not the highest weight limit for the WinkBed Plus: With a 900lb capacity, the WinkBed Plus is well beyond the average (600lbs), but the Plank (#6) supports up to 950lbs.
❌ No side handles: The WinkBed would benefit from carry handles to make the process of installing and rotating this heavy mattress much easier.
When, where and how to buy
There's no need to wait for a special event to purchase a WinkBed because it's always 30% off during a year-round sale. After a slight MSRP increase (the first in four years), a queen WinkBed Plus costs $1,799. There's also a Plus version, aimed at those who weigh more than average.
In good news for hot sleepers, there's now also a new option to add a cooling cover for an extra $125 for a queen, which could see it rival one of the best cooling mattresses of the year. The WinkBed includes a lifetime warranty, a 120-night trial, and free shipping.
8. Best organic mattress in a box


Specifications
Reasons to buy
Reasons to avoid
Quick summary
The Avocado Green is our top-rated organic mattress, and it's even more impressive that this handcrafted bed ships in a box. Avocado is best known for its commitment to sustainability, which is apparent in its array of mattress certifications.
The standard Avocado Green Mattress is classified as firm. Add a pillow-top or box-top to make it softer for side sleeping or to give your bed a more luxurious appearance — just know these upgrades can nearly double the cost of this already-premium mattress.
As-is, the Avocado Green Mattress boasts excellent edge support and motion isolation, although those traits may be slightly diminished by adding a softer topper.
Read what we liked, didn't like, and how to buy it ▼
The Avocado Green is a splurge, especially with the upgraded toppers, but in our opinion, you get what you pay for. The all-natural, organic materials, combined with a bed of individually wrapped coils, provide a delightful blend of comfort, support, and cooling.
Our review: in more detail
Support and comfort: ★★★★
Pressure relief: ★★★★
Temperature regulation: ★★★★★
Motion isolation: ★★★★½
Edge support: ★★★★★
Value for money: ★★★★½
Avocado Green uses top-quality, natural materials like GOTS-certified cotton and wool, and GOLS-certified latex. This organic bed is hand-finished and crafted to a high standard here in the US. Notably, Avocado mattresses are fully needle-tufted by hand; none of the components are glued together.
The base Avocado Green Mattress features three inches of Dunlop latex, including a 2" layer in the top comfort layer. Combined with a bed of up to 1,379 wrapped coils arranged in seven ergonomic zones, this yields a firmer surface with minimal sinkage and excellent support for back and front sleepers.
However, our side-sleeping tester had a difficult time adjusting to the unyielding surface of the standard Avocado Green at first, although she eventually settled in. If you're not as patient, consider the box-top or pillow-top upgrade to cushion your shoulders and hips. Just keep in mind that this could nearly double the cost of your mattress.
This organic bed is hand-finished and crafted to a high standard here in the US
In our tests, the Avocado Green achieved a perfect 5-out-of-5 score for temperature regulation, a testament to its naturally breathable materials. (Our tester, who is prone to overheating, didn't break a sweat once.)
The fully reinforced steel perimeter makes for steady edges — and despite the buoyancy of the latex, the Avocado Green dampens movement well enough that most couples should be able to bed-share in peace.
We strongly recommend enlisting some help in setting up this very heavy bed-in-a-box. (A queen-size Avocado Green Mattress can weigh as much as 144lbs.) While it may be antithetical to this list, Avocado does offer the option to pay for in-room delivery and setup from $249.
What we like about it...
✅ Organic, non-toxic, and sustainably produced: No other mattress company is as committed to safe, eco-friendly sleep as Avocado. You won't find any synthetic foams or fire retardants here. There's even a vegan version of this mattress that swaps the wool for cotton.
✅ This mattress breathes at night: The combo of natural organic materials (latex, cotton, wool) and up to 1,379 wrapped steel coils helps air circulate so you don't wake up hot and bothered. It's not a specialist cooling model, yet the Avocado Green is one of the best temperature-regulating mattresses we've ever tried.
✅ You have options: Add a Dunlop latex pillow-top or a Talalay latex box-top to give the Avocado Mattress a more cushioned bed feel to suit side sleeping and smaller bodies. Stick with the standard version for maximum support for heavier sleepers and when resting on your back or front.
What we don't like about it...
❌ It's an investment: The Avocado Green is among the most expensive boxed mattresses on the market — especially with an upgraded top. However, the Birch Natural (also tested) is a more affordable alternative if you're committed to buying organic.
❌ It doesn't quite 'hug' like memory foam: Natural latex will cradle your body rather than offer that dense, contouring embrace you'd experience with the Nectar Premier (#3) or Zinus (#9).
❌ Solo setup is not advised: This is a heavy mattress to set up, especially by yourself. Ask for help, or consider spending extra for in-home delivery (from $249).
When, where, and how to buy
While you can find Avocado mattresses at third-party retailers throughout the country (including Raymour & Flanigan), the best deals and aftercare will come from the brand directly.
However, Avocado mattress deals and sales are rare, only really showing up around major holidays. Even then, the discounts aren't massive, usually spanning between 10% and 15% off.
Still, compared to other leading organic mattresses from Naturepedic and Essentia, the Avocado Green is actually one of the most affordably-priced — but make no mistake, this is a premium mattress in the broader market.
9. Best mattress in a box under $300


Specifications
Reasons to buy
Reasons to avoid
Quick summary
The Zinus Green Tea is among the most popular Amazon mattresses for its wallet-friendly price and range of heights, from 5" to 14". For most adults, we recommend at least a 10" mattress thickness; our testing is based on a queen-size 10" Zinus Green Tea Mattress.
At this thickness, the mattress has a medium firmness well-suited for side sleepers and smaller back sleepers. If you need more support than contouring, try the comparatively-priced 10" Siena Signature Memory Foam (#2).
While the dense foams dampen movement well, you'll still need to temper your expectations for this sub-$300 mattress. It suffers from weak edges and holds a lot of heat.
Read what we liked, didn't like, and how to buy it ▼
But whether you need a mattress for your guest room or a short-term solution for a main bedroom, the Zinus Green Tea will be up to the task. It comes with a 10-year warranty for peace of mind.
Our review: in more detail
Support and comfort: ★★★½
Pressure relief: ★★★★
Temperature regulation: ★★★
Motion isolation: ★★★★★
Edge support: ★★½
Value for money: ★★★½
The Zinus Green Tea Memory Foam Mattress comprises three layers, including a top comfort layer of green-tea infused memory foam, which purportedly adds 'freshness.' Gimmicks aside, Zinus does use CertiPUR-US certified foams, ensuring they meet certain health and environmental standards.
Similar to the mid-range Nectar Premier (#3), the surface of the 10" Zinus Green Tea Mattress has a body-hugging sink to relieve pressure buildup and cushion the joints. Our average-weight tester felt most at ease on her side, while our lighter, back-sleeping tester gently sank into the bed comfortably.
That said, heavier sleepers will find the 10" Zinus mattress too soft in any position. The 13" Nectar may provide more support for side sleeping, while the Plank Firm (#6) will be more accommodating for back and stomach sleeping.
One benefit of the dense foams of the Zinus Green Tea Mattress is exceptional motion isolation
One benefit of the dense foams of the Zinus Green Tea Mattress is exceptional motion isolation. It eats up movement almost immediately, so if you share a bed with a partner or pet, you'll be unlikely to feel them fidgeting or getting up and down. (We scored it a perfect 5/5 based on our drop tests.)
But just as this mattress traps movement, it also traps heat. While our testers didn't overheat at night, we could see this being an issue for sleepers with hot flashes or night sweats. You’ll also be giving up sturdy edge support — but, to be fair, that’s not something most cheap memory foam mattresses offer anyway. (The Siena at #2 is an outlier.)
Buying directly from Zinus will guarantee the best aftercare with a 100-night trial, but for the lowest price, you'll need to buy from Amazon, where a queen-size Zinus Green Tea is regularly on sale for under $300. Unfortunately, Amazon only grants a 30-day return window for unopened mattresses.
What we like about it...
✅ It's marshmallow-soft for side sleeping: If you don’t want to spend a fortune on a side-sleeper mattress, the Zinus is a solid pick. Its plush memory foam comfort layers offer ample pressure relief, with the dense base foam delivering sufficient support.
✅ It eats up virtually every movement: Memory foam mattresses are known for their motion-isolating capabilities, and the Zinus Green Tea is one of the best beds we've ever tested in this category.
✅ It's an excellent choice for a guest bedroom: One of our testers stayed at a vacation rental with a Zinus Green Tea Mattress and enjoyed a weekend of restful sleep. For short-term or limited use, it's a sound purchase.
What we don't like about it...
❌ Won't be supportive for everyone: If you're a heavier sleeper or favor your back or stomach, the Zinus will feel too soft. Go with a taller mattress if you still want that body-hugging sensation, or a firmer mattress if you'd rather sleep 'on' your bed than in it.
❌ Squishy edges: The marshmallow softness works for pressure relief — but not for much for edge support. A hybrid (such as the DreamCloud at #1) will be your best bet if you want to maximize every inch of your sleep surface.
❌ Not for hot sleepers: The dense foams of the Zinus trap heat, so if you're prone to overheating at night, proceed with caution.
When, where, and how to buy
The 10" Zinus Green Tea Memory Foam Mattress retails for $499 at Zinus, but regular sales knock as much as 37% off plus an extra 10% off via coupon. That brings a queen down to $499.
However, if your ceiling is $300, then you'll need to head to Amazon, where a queen-size is consistently hovering around $250 if you select 'new small box.'
The caveat of going with the lower price is losing access to a proper trial period. Zinus includes a 100-night trial when you buy directly from them, but Amazon only grants a 30-day returns window for unboxed mattresses. Either way, you'll receive a 10-year warranty.
How we test mattresses in a box
The Tom's Guide mattress review process is editorially independent and not influenced by third parties. We conduct market research to see which new boxed mattresses are being released, then contact the brands for review samples. Every mattress in this guide has been selected by our editorial team.
Our mattress testing process is conducted in two parts: lab testing and an at-home sleep experience. This allows us to collect both objective and subjective feedback, to ensure our reviews are accurate and fair.
We test each mattress for key performance indicators. As well as comfort, support, and pressure relief, we test temperature regulation, motion isolatio,n and edge support.
For our temperature regulation tests, we deploy a thermal imaging camera to closely measure temperature changes. First, we ensure the temperature of the Sleep Lab is between 65 and 70°F, which is the best temperature for sleep. Using the thermal imaging camera, we then take a temperature reading at the four corners of the mattress, the center of the bed, and a designated hot spot (roughly where the middle of our tester will be).



Our tester then lies on the mattress for 15 minutes; every minute we take the same six measurements to monitor the MTI (Maximum Temperature Increase). The tester then leaves the mattress, and we again monitor for 15 minutes to determine how quickly the bed sheds heat.
To test for motion isolation, we use a drop test: a 5kg slam ball is dropped from 24 inches above the mattress onto one side of the bed, while an accelerometer on the other side measures the Initial Impact Absorption (IIA — initial force of the movement) and Motion Decay Speed (MDS — how long it takes the movement to stop.) We repeat the test 10 times and take an average.
We also conduct lab-based tests using members of our team to complete a series of low, medium, and high force movements (such as changing position) on the mattress, while another team member lies next to them and records what they feel.
Our edge support lab tests are two-fold, combining weight tests (placing 25kg at the side and foot of the bed to measure sinkage and response time) with the 'roll-off' test: how far can we get to the edge of the bed before we fall?





Comfort is subjective, but to objectively understand pressure relief and support we place a series of weights (10kg and 25kg) in designated 'sleeping areas' on the mattress. Using a laser pen we measure the initial sink of the weight, the sinkage after 5 minutes, and the recovery time. We also use our laser pen to measure spinal alignment — after 10 minutes lying on the mattress, is our testers spine still aligned?
Alongside lab testing, each mattress is taken home and slept on by a member of our sleep team for a period of at least three weeks. As well as providing valuable insight into comfort and support, our testers offer feedback on temperature regulation, motion isolation and edge support.
And to better understand the overall appeal of the mattress, we ask secondary testers with different body types and sleep needs to try the mattress and complete a feedback survey.
We also consider value for money: what are you getting for the price and does the cost match the mattress? Finally, we analyze customer reviews and brand claims, using this information to direct further testing.
We score all key criteria out of 5, based on a scoring rubric combining subjective and objective data. These scores are then added together to give a total score out of 5 for each mattress.
Beds in a box come in a variety of builds, feels and price points. This rigorous testing helps us better understand each mattress comparatively and objectively, to ensure we only recommend the best.
Also tested and recommended
We test multiple mattresses-in-a-box every month. This guide highlights the best of the bunch, but perhaps there's an option that didn't make the cut that might be just what you're looking for. You can also take a look at our other specialist guides if you know you want something cooling, firm, or suitable for back pain.
Some of the other mattresses-in-a-box that we've reviewed include:
1. DreamCloud Classic Memory Foam Mattress: from $299 at DreamCloud
This is the all-foam version of the DreamCloud Classic Hybrid that tops our best mattress-in-a-box guide. Save for a twin, this model costs up to $200 more in all sizes, which is unusual — all-foam mattresses are typically cheaper. So how does it differ from its hybrid sibling? In our DreamCloud Classic Memory Foam Mattress review, we said it 'hits the right notes for back and stomach sleepers.' (In other words: it's firmer.) It's better at limiting movement, as well. For a perma-sale price of $799, you can bring home a queen-size while availing of DreamCloud's 365-night trial and lifetime warranty.
2. Helix Midnight Mattress: was from $988 now from $729 with code TOMS27 at Helix Sleep
Side sleepers can enjoy a dreamily comfortable sleep with the Helix Midnight. This mid-range mattress from the Helix Core Collection offers cradling memory foam, which will leave you feeling cozy and secure night after night. In our Helix Midnight mattress review, we noted that it may be too soft for stomach sleepers, and its edge support may be lacking, but if you're looking for a soft and luxurious mattress under $1,000, you could do a lot worse than the Helix Midnight.
3. Nectar Classic Memory Foam Mattress: from $349 at Nectar
While the Nectar Premier knocked the Nectar Classic from the top of our best memory foam mattress list, there's still a lot to like about this entry-level model. We found it comfortable in all sleep positions in our Nectar Classic Memory Foam Mattress review; it has a slightly firmer tension and less of a 'hug' than the Premier. If that's what you're after, you'll pay just $649 for a queen-size Classic during Nectar's evergreen sale. As always, you'll get a 365-night trial and a forever warranty.
4. Birch Natural mattress: was from $1,373.75 now from $1,002 with code TOMS27 at Birch
If you're looking for a mattress-in-a-box that's kind to the environment, the Birch Natural is the bed for you. It offers firm yet bouncy support, and accommodates a wide range of weights and sleep types. It's not ideal for co-sleepers, lacking in motion isolation and some may find its non-sinking foam too firm. Our Birch Natural mattress review praised its suitability for combi sleepers, as well as its cooling properties. It comes with a 100-night sleep trial, 25-year warranty, and free fast shipping.
5. Brooklyn Bedding CopperFlex Pro Hybrid Mattress: was from $932 now from $652 at Brooklyn Bedding
Here's proof that a quality specialist mattress doesn't have to cost a lot. We called it an 'outstanding value for cooling comfort' in our Brooklyn Bedding CopperFlex Pro Hybrid Mattress review. The GlacioTex cover and copper foams zap heat away from the surface, while the medium-firm tension and plush pillow top make it a cozy choice for side sleepers in particular. Oh, and a queen-size is regularly discounted to just $999 (or less), with a 120-night trial and a lifetime warranty included.
6. EGOHOME Black 12" Hybrid Mattress: was from $549 now from $329.99 at EGOHOME
Another economical mattress you'll be able to find for less than $500 in a queen, the EGOHOME Black Hybrid is quite substantial for what little you'll pay for it. We rate it suitable for average and heavier-weight side sleepers, as well as lightweight back sleepers — and as we also found out in our EGOHOME Black 12" Hybrid Mattress review, it boasts some of the strongest edges we've ever experienced. You may be able to find it for less at Amazon, but buy from EGOHOME for the best aftercare (100-night trial, 10-year warranty).
7. Siena Premier Hybrid Mattress: from $254 at Siena
This budget bed in a box is nipping at the DreamCloud's heels, offering exceptional comfort for an incredibly low price. (A queen goes for $424 during an evergreen sale.) It's firm, sleeps temperature-neutral, and has more supportive edges than the DreamCloud — but it also scored lower in motion isolation (3.5/5) and doesn't have the contouring that makes the DreamCloud our number one boxed mattress. Read more in our Siena Premier Hybrid Mattress review.
Mattress in a box FAQs
What is a mattress in a box?
A mattress in a box is a memory foam or hybrid mattress that has been machine-compressed into a smaller size, tightly rolled, then packed into a sturdy cardboard box for shipping to your home. Shipping times vary by brand, but you can get a boxed mattress as fast as within two working days.
Once that box arrives at your door, your job is to unbox it. Each mattress in a box is covered in a reinforced plastic cover, and many brands give you a tool to slice through that covering more easily. Once the mattress has been fully unpacked, pop it on your bed base where it will begin to regain its full shape.
While they are the same as regular mattresses once fully decompressed, a mattress in a box takes anywhere from a few hours to a few days to be ready to sleep on. Emma mattresses, for example, are ready to sleep on in a few hours, while Nectar mattresses take up to 72 hours.
You may notice a bit of a smell at first, but this mattress off-gassing is normal. Just open the windows and it should soon pass, leaving you to enjoy your comfy new bed. To care for your new mattress in a box, cover it with one of the best mattress protectors to safeguard against stains.
Casper has been credited with making beds-in-a-box popular since its launch nearly 10 years ago, and now we also have the likes of Purple, Layla, Nectar, Helix and many others.
In terms of warranty, coverage ranges from 10 years to a forever warranty (Nectar and DreamCloud), but we’d advise you to check the small print so that you know what will and won’t be covered. For further guidance, read our feature on how do mattress warranties work.
Are mattresses in a box any good?
Yes, boxed mattresses can be excellent if you pick the right one. We've spoken to experts from the mattress industry to get a definitive answer on if beds that come in a box are good, and the short answer is that the quality of the mattress is much more to do with the specific model than whether it has been compressed or not. There are plenty of fantastic boxed options – such as those included in our ranking – but also plenty of rubbish cheap boxed mattresses that should be avoided.
Boxed mattresses are often delivered quicker and are easier to maneuver, but you'll avoid decompression time and perhaps also off-gassing if you go for a traditional option.
It’s easy to look at the cheaper price tags of some mattresses in a box and dismiss them as being too cheap to be supportive or comfortable, but that simply isn’t the case. My team has spent hundreds of hours sleeping on some of the top boxed mattresses and find them equally as comfortable as traditional mattresses sold in-store.
Do you need a box spring for a mattress in a box?
Many years ago, a box spring was a must for your mattress. These days, it's not a necessity and in a lot of cases, using a box spring with your boxed mattress can void its warranty.
Read more: What is a box spring?
The reason? Modern mattresses are built to be sturdy enough that you can forego a bed base and simply put them on the floor (though we don't totally recommend this). Box springs made sense when thinner innerspring mattresses were the standard, as they provided a boost in support, height, and airflow. Today's memory foam, latex, and hybrid mattresses in a box should be fine with a foundation instead.
Mattress in a box expert buying advice
Is Black Friday a good time to buy a mattress in a box?
Black Friday has long been considered the best time of the year to buy a mattress in a box, but in recent years, other events have proven to be just as fruitful for deals. Presidents' Day, Memorial Day, Labor Day, and even July 4th are flush with bargains that are on par (or even better than) what we expect to see on Black Friday.
However, several mattress-in-a-box brands are known for their perma-sales; in other words, you don't have to time your purchase because their discounts hold steady throughout the year. Resident (DreamCloud, Siena, and Nectar) is known for doing this.
How to choose the best mattress in a box
With more and more options available for buying a mattress in a box, it’s now easier than ever to find something that suits your sleeping position, body weight and any particular needs you might have when it comes to getting a restful night’s sleep.
Things to look out for when buying a bed-in-a-box online include:
Features – If you need extra features from a mattress to help you sleep, then there’ll be something for you, whether you sleep hot, need more pressure relief, or extra support for backache. Plenty of mattresses now come with innovative tech and eco-friendly materials too, so whatever your concerns, it should be covered.
Firmness – just like standard mattresses, beds in a box come in a variety of firmnesses. If you know you will likely need a firmer mattress for instance, check before you buy to ensure you are getting the most comfortable choice for you.
Trial period and free delivery/returns – many top brands offer mattress trials on their mattresses, giving you the chance to try the mattress out for yourself. It’s always a good idea to take advantage of trial periods, and if you decide the mattress isn’t for you, check that you can get a full refund.
This takes a lot of the stress out of buying a mattress online, especially if the mattress is expensive. Also check if the company offers free returns so there’ll be no surprises if you do need to send the mattress back.
Reviews – online reviews often give you extra information about the mattress, including feedback after a few weeks’ use and a closer assessment of the feel and comfort for different body weights. If you have decided on a boxed mattress, compare a few user reviews on the brand websites with those elsewhere too.
When is the best time to buy a mattress in a box?
There are definitely key periods throughout the year when it’s better to buy a boxed mattress, and chief among these is the Black Friday mattress deals, where prices are at their lowest and discounts are at their highest.
These often roll over into Cyber Monday mattress deals, which is the first Monday immediately following Black Friday, and you may even see some higher discounts on Cyber Monday when brand’s mount last-ditch efforts to attract your custom before Christmas.
Beyond that, the Memorial Day mattress sales in May are another key time to buy a mattress in a box for less than normal, with retailers looking to shift older stock before new ranges arrive in the summer. Labor Day mattress sales in September are also a good time to look, as they feature some of the lowest prices before Black Friday season.
What’s the difference between a mattress in a box and a traditional mattress?
When it comes to making the distinction between a mattress in a box and a traditional mattress, it's all about the packing process. A traditional mattress is delivered flat, but a mattress in a box is compressed with a heavy weight, rolled in plastic, boxed, and delivered to your door. When you open the packaging, the mattress unrolls and expands to its previous shape.
This packaging negates the need for an expensive brick-and-mortar store, and the saving is passed on to the consumer. You can get a great quality bed for less, with regular online mattress sales helping you save further.
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Claire is a Certified Sleep Science Coach and the Managing Editor of Sleep at Tom's Guide. She curates our mattress guides and oversees our rigorous mattress testing procedures. Claire has over 16 years' product review experience and is connected to a wealth of globally renowned sleep experts including mattress designers and buyers, neuroscientists, and doctors of sleep medicine. As the Managing Editor of our Sleep and Mattress Team, Claire is responsible for all mattress and sleep content published on Tom’s Guide and is our expert on Saatva, DreamCloud, and Nectar mattresses. Claire is also certified to advise people on how to choose a mattress that suits their needs and budget, as well as helping them to create a nighttime routine and bedroom environment that helps them sleep better.
- Ruth JonesSenior Sleep staff Writer
- Alison BarrettaExpert mattress tester







