I've found today's best Amazon Prime Day mattress deals — 25 beds I'd buy from DreamCloud, Siena, Casper and more

1. Siena Memory Foam Mattress: twin was $199 now $149 at Amazon
The best cheap mattress we've tested, the all-foam Siena has a firm and supportive feel that's ideal for back and stomach sleepers (as well as perfect for your guest room.) In our Siena Memory Foam Mattress review we praised the breathable build — some cheap all-foam beds can sleep uncomfortably hot but the Siena stays neutral even throughout summer heatwaves. Prime members can get a queen for only $278 (was $349) which beats the Black Friday price and matches the mega saving we spotted during Memorial Day. With a 180-night trial and 10-year warranty, this deal is all-round excellent.

Our review: ★★★★ 
User score: ★★★★½ (600+ reviews)

2. Zinus 12" Green Tea Memory Foam Mattress: full was $219.99 now $186 at Amazon
Delivering a squishy, body-hugging feel, our Zinus Green Tea Memory Foam Mattress review team agreed this bed is a dreamy choice for side sleepers (we tested the 10" and the 12" is likely even more cushioned.) Like many of the best memory foam mattresses it excels at pressure relief, cushioning the shoulders and hips to prevent aches and pains. We recommend pairing this mattress with your most breathable bedding — it can sleep hot — but at just $194 for a queen (was $229.99), it's a bargain. The best ZInus mattress deal this Prime Day is on the queen but it's an affordable mattress at any size.

Our review: ★★★½ 
User score: ★★★★½ (78,000+ reviews)

3. DreamCloud Luxury Hybrid Mattress: twin was $419 now $319 at DreamCloud
One of the best hybrid mattresses we've tested, in our DreamCloud Mattress review we described it as delivering "affordable luxury" with a medium-firm feel that suits most sleep styles, a breathable build, and an indulgent finish. DreamCloud mattress sales rarely change so this is an unexpected price drop for Prime Day, reducing an older (but still highly rated) version of the DreamCloud to just $549 for a queen (was $665.) And you get a 365-night trial and a lifetime warranty.

Our review: ★★★★½
User score: ★★★★½ (1,000+ reviews)

4. Casper Sleep Element Mattress: twin was $395 now $276.50 at Amazon
Dropping to the lowest price we've seen this year, the Sleep Element is an affordable memory foam design from Casper, the brand behind some of the best mattresses in a box you can buy online. Like Casper's flagship all-foam mattress, The One, we expect the Sleep Element to deliver firmer support and top-notch motion isolation. Prime members can save 30% on a queen, reducing it to just $416.50 (was $595.) If that doesn't catch your eye, there are plenty more offers in this month's Casper mattress sale.

User score: ★★★★½ (5,800+ reviews)

5. Nectar Classic Memory Foam Mattress: twin was $349 now $296.64 at Amazon
This budget-friendly bed blew away our Nectar Classic Memory Foam Mattress review panel with its supportive build, breathable feel and incredible motion isolation. The medium-firm feel will suit most sleep styles but be aware it doesn't have the squishy, sink-in feel of other all-foam beds (you'll need to upgrade to the Nectar Premier for that.) Nectar mattress sales have a reputation for being predictable so this saving has taken us by surprise — a queen is now only $551.64 (was $649) and comes with a 365-night trial and lifetime warranty,

Our review: ★★★★½
User score: ★★★★½ (8,000+ reviews)

6. Tuft & Needle Kin 10" Hybrid Mattress: twin was $449 now $345.53 at Amazon
The Kin mattress is an Amazon-exclusive from popular boxed bed brand Tuft & Needle. Made in the US with Greenguard Gold certification, the hybrid uses T&N 'adaptive' foam to create bounce back pressure relief — when you move, the foam moves with you, so you never lose out on comfort. With 27% off a queen is now $585.47 (down from $799), a competitive price for a high quality hybrid.

7. EGOHOME 12" Black Memory Foam Mattress: twin XL was $309.99 now $260.80 at Amazon
We recently had a chance to test this affordable all-foam mattress and after a month of sleeping on it it was decided: this is one of the best mattresses on Amazon under $400 for a queen. The lead tester in our EGOHOME Black Memory Foam Mattress review team is a lightweight side sleeper who struggles to find a bed with enough pressure relief but the EGOHOME was just right, the slow moving foams contouring to the shoulder to prevent body aches. At $311.99 for a queen (was $429.99) is back down to one of the lowest prices we've seen year but act fast, as EGOHOME deals are typically short lived.

Our review: ★★★★ 
User score: ★★★★½ (4,700+ reviews)

8. Serta Five Star Mattress Tranquility 10" Plush Mattress: twin was $399 now $299.25 at Amazon
With a padded plush top sitting on a spring base, the best pillow top mattresses often have a luxury finish and feel — you find many pillow tops on the mattresses used in hotels. The Serta Tranquility promises indulgent pressure relief and we predict it's a good choice for side sleepers. At this low price we're not entirely sure it will live up to the 'five star' promise of its name but from established sleep brand Serta, it has decades of mattress experience in its build. Prime users can save 25% on a queen, reducing it from $499 to $374.25.

User score: ★★★★½ (17 reviews)

9. Ethical Mattress Co Latex Hybrid Mattress: twin was $698 now $558 at Amazon
If you want to make your sleep a little greener, this is the deal for you — 20% off the Ethical Mattress Co Latex Hybrid mattress reduces a queen from $998 to $798.40 at Amazon. The best organic mattresses typically use latex foams to create a bouncy and responsive feel with natural cooling. There aren't many latex mattresses on Amazon so this is an unexpected chance to save.

User score: ★★★★½ (74 reviews)

10. EGOHOME 10" Memory Foam Mattress: twin was $137.99 now $129.99 at Amazon
Our expert testing team recently got hands-on with a couple of EGOHOME mattresses and we've been impressed with the quality of this budget bed brand. The 10" version is unlikely to offer the exceptional pressure relief of the 12" taller counterpart we highlighted above but in the Prime Day sale it's also significantly cheaper — a queen has been reduced from $205.59 to $151.32.

User score: ★★★★½ (1,600+ reviews)

11. Signature Design by Ashley Chime 12" Mattress: twin was $368.99 now $204.05 at Amazon
Regularly making appearances in the Amazon best seller list, the Chime mattress by Ashley is a low-price hybrid. Hybrid mattresses are typically more expensive than their all-foam alternatives but if you want to avoid the body-hugging feel of memory foam, this is a bouncier alternative that won't break the bank. At this price point it probably lacks longevity but with over 20,000 positive reviews it's likely to be a good short term solution for sleep comfort. And with a queen only $237.02 (was $349.99) for Prime members, it's one of the best priced hybrids you can buy today.

User score: ★★★★½ (29,000+ reviews)

12. Best Price 8" Mattress: twin was $146.99 now $89 at Amazon
For shoppers on very tight budgets, this saving from Best Price mattress is almost impossible to beat. At just $89 for an 8" thick twin size mattress, it's ideal for spare rooms, giving your guests a comfy place to sleep — and you can use the money you save to finish the set up with one of the best pillows. The bad news is there's no deal on the 8" queen size but you can get a 10" queen for just $151.99 (was $219.99.)

User score: ★★★★½ (30,000+ reviews)

13. Sealy Dreamlife 10" Foam Mattress: twin was $429 now $299.96 at Amazon
There are savings across the Sealy Dreamlife line in the Amazon Prime Day sales but our top pick is the 10" foam mattress a queen is now only $409.14, reduced from $499. Made in the US, the Dreamlife mattress comes with a 10-year warranty and all the sleep knowledge Sealy has accrued in over a century making mattresses. Reviews suggest it's on the softer side of medium-firm so we recommend it for side sleepers.

User score: ★★★★½ (68 reviews)

14. Sleep innovations Marley Hybrid 10" Mattress: twin was $319.99 now $231.18 at Amazon
Cheap mattresses often struggle to maintain support across the mattress but the Marley by Sleep Innovations features a foam edge railing to keep the support sturdy right up to the perimeter. Reviews note it's best for side sleepers, with some customers finding it softens with use — so if it feels too firm at first, give it some time to break in. For Prime Day a queen has been dropped to just $310.65 down from $429.99, which is the lowest price we've seen so far this year.

User score: ★★★★½ (1,000+ reviews)

15. ESHINE Adjustable Bed Frame + 14" Hybrid Mattress: twin XL was $799.99 now $639.99 at Amazon
This Prime Day the best Amazon deals are primarily on cheap mattresses but if you're looking to indulge in your sleep set up there are still savings to browse. Like this deal from ESHINE, which pairs an adjustable bed base with a 14" hybrid mattress. Adjustable bed frames are recommended for those who frequently experience aches and pains, as zero gravity positioning can help reduce pressure on the body. For Prime Day a queen set is down to the lowest price we've seen at just $865.60 (was $1,086) for the set.

User score: ★★★★½ (900+ reviews)

16. Siena Essential 8" Memory Foam Mattress: twin was $148 now $119 at Amazon
Supporting both your sleep and your wallet, the 8" Siena mattress uses the same high quality foams you'll find in the Siena Original (topping this guide as our favorite Prime Day deal), just on a smaller scale. We recommend it for teens and children primarily, but it's also among our favorite mattresses for a college student. And with a queen only $179 (was $279), you'll have room left in the budget for more than just ramen.

User score: ★★★★½ (600+ reviews)

17. Cool Gel Chill Memory Foam Mattress: full was $429.99 now $399.99 at Amazon
You don't need to be a Prime member to take advantage of this sale, which is good news for anyone struggling to sleep in the recent heatwaves. The Cool Gel Chill mattress uses heat-wicking foams to keep you comfortable throughout the night, even when the summer heat is sabotaging your sleep. This mid-range model might not be as chill as the best cooling mattresses we've tested but at just $474.99 for a queen (was $569.99), it's a low cost solution to night sweats.

User score: ★★★★½ (54,000+ reviews)

18. Nectar Memory Foam Mattress: twin was $349 now $282 at Amazon
An older version of the Nectar Classic Memory Foam Mattress above, this version delivers the same exceptional blend of support and cushioning — you can see why we love it in our Nectar Mattress review. If you want better durability and a higher quality finish, go for the new option above. But if you want the best value for money, this model is only $451.06 for a queen (was $649) and comes with a 365-night trial and lifetime warranty.

Our review: ★★★★½ 
User score: ★★★★½ (3,000+ reviews)

19. Casper Original Mattress: twin was $895 now $611.50 at Amazon
It's since been replaced by The One mattress in the main Casper line-up but the Original mattress is still around to buy and still a good choice for side sleepers. It impressed us with its body-contouring comfort in our Casper Original mattress review and while you'll pay $1,295 for a queen at the Casper website, this massive Prime deal gets you a queen for $891.50. Plus, you'll get a 100-night sleep trial and free returns.

Our review: ★★★½ 
User score: ★★★★½ (1,000+ reviews)

1. Linenspa 2" Memory Foam Mattress Topper: twin was $39.99 now $33.99 at Amazon
If your mattress is too firm for your sleep comfort, the Linenspa Memory Foam topper is an affordable way to introduce a touch more cushioning. At just 2" tall it won't have the transformative effect of some of the best mattress toppers we've tested but it can still increase pressure relief and with a queen only $50.99 (was $59.99) it's an affordable choice.

2. Lucid 4" Gel Memory Foam Mattress Topper: twin was $74.99 now $63.74 at Amazon
Measuring 4 inches thick, the Lucid Gel Memory Foam Mattress Topper is intended to add plush cushioning to any mattress — we recommend it for side sleepers who find themselves frequently waking up with shoulder pain caused by a too-firm mattress. For Prime Day a queen 4" Lucid Mattress Topper is reduced to $101.99 (was $119.99) in a deal that doesn't come around very often. Some sizes of Lucid mattress toppers do sell out frequently, so act fast to secure this saving.

3. Sleep Innovations 4" Cooling Comfort Gel Mattress Topper: twin was $109.99 now $75 at Amazon
Struggling to sleep in the summer heat but don't have the budget for the best cooling mattresses? This Sleep Innovations topper could be the solution, pairing heat-wicking gel memory foam with a cool to the touch cover to add a chill layer to your bed. And in the Prime Day sale a queen is only $115.99 (was $149.99.) Sleep Innovations also offers toppers to enhance support and relief but in the recent heatwaves, this is the option we've been dreaming of.

1. Saatva Classic Mattress: twin was $1,399 now $1,099 at Saatva
Our Saatva Classic Mattress review team gave this handcrafted mattress full marks in all areas, praising the luxury support, full-body pressure relief and breathable feel. It's available in three firmness levels (soft, medium-firm, firm) and two heights (11.5 inches or 14.5 inches), and this customization gives it a wide appeal — it suits almost every sleep style. You can save $300 on all sizes of the Classic right now by following our links, reducing a queen to $1,799 (was $2,099.) We did spot it for $1,699 in the recent 4th of July sales but we think it will be a while before that deal and returns — and this is an excellent price on a mattress that "revolutionized" our lead testers sleep. Plus, you get a full year's trial, lifetime warranty and free white glove delivery.

Our review: ★★★★★
User score: ★★★★★ (3,600+ reviews)

2. Helix Midnight Luxe: twin was $1,436 now $1,048.28 at Helix
Named the best mattress for side sleepers by our experienced testing team, the Helix Midnight Luxe offers plush comfort and an indulgent feel. In fact, the lead tester in our Helix Midnight Luxe mattress review has been singing its praises for over a year. In the current Helix mattress sale you can save 27% on the Midnight Luxe using code TOMS27, a big step up from the 20% off sale we're more used to seeing at Helix. A queen is currently $1,751.03 (was $2,398.66) and comes with a 100-night trial and a lifetime warranty.

Our review: ★★★★½
User score: ★★★★½ (7,000+ reviews)

3. DreamCloud Classic Hybrid Mattress: twin was $419 now $356 at DreamCloud
DreamCloud mattress sales are fairly predictable so we're surprised to see the brand taking on Prime Day with an extra 15% off affordable luxury mattresses. This reduces a queen size DreamCloud Classic Hybrid to $594 (was $699) which is the lowest price we've seen this year. While we haven't had a chance to test this new model, we predict it delivers the same crowd-pleasing comfort we observed in our DreamCloud mattress review — and you have a 365-night trial to test it out, plus a lifetime warranty.

Our review: ★★★★½
User score: ★★★★½ (9,500+ reviews)

4. Nectar Premier Memory Foam Mattress: twin was 549 now $467 at Nectar
If you're looking for the classic memory foam experience — deep soothing hug, sink-in comfort — that's just what you'll get with the Nectar Premier. One of the best mattresses for side sleepers, it uses high quality foams to relieve pressure where your body pushes against the bed. We described it as "indulgent" in our Nectar Premier Memory Foam Mattress review. With an extra 15% off in a Prime-rivaling sale, a queen is reduced from $949 to $807 and it comes with a 365-night trial and forever warranty.

Our review: ★★★★½
User score: ★★★★½ (7,300+ reviews)

5. CopperFlex Pro Hybrid Mattress: twin was $932 now $652.40 at Brooklyn Bedding
The CopperFlex mattress promises a luxury feel for shoppers on a mid-range budget and our CopperFlex Pro Hybrid Mattress review team agreed it achieved just that, impressing us with its thick cushioning, cooler surface and enticingly luxurious look. A queen hybrid is currently $932.40 (was $1,332) and is a good choice for anyone who wants a cooling mattress but is working with a tighter budget. A lifetime warranty and 120-night trial are included.

Our review: ★★★★½
User score: ★★★★½ (500+ reviews)

6. Tempur-Pedic Tempur-Adapt Mattress: twin long was $1,699 now $1,189.30 at Tempur-Pedic
Our Tempur-Pedic Tempur-Adapt mattress review team were skeptical this bed could deliver the 'legendary pressure relief' it promised — and they were proved wrong. Pairing the intense cushioning of Tempur Material foam with a supportive base, we love this mattress for back sleeping and it's also great at relieving aches and pains (but be aware, it can sleep hot.) 30% off is an unusually big saving on this premium mattress, reducing a queen to $1,539.30 (was $2,199.) However, while a 10-year warranty is included, there's no sleep trial.

Our review: ★★★★½ 
User score: ★★★★½  (11,000+ reviews)