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Casper Wave Hybrid Snow mattress review 2021

Casper's upgrade to its Hybrid Snow mattress is the brand's coolest (and most expensive) offering yet

casper wave hybrid snow mattress
(Image: © Casper)

Our Verdict

The Casper Wave Hybrid Snow is a luxury mattress that comes packed with cooling features. It's an excellent choice for anyone who overheats at night, and it's extremely supportive, making it a good option for anyone suffering from neck or back pain. The cost will be off-putting for many, though, especially since there's no variable firmness.


  • Superb temperature regulation
  • Excellent motion isolation
  • Great for back sleepers


  • Pricey with no room to customize
  • Might be too firm for some
  • Middling edge support

Casper Wave Hybrid Snow mattress: Review in brief

  • Casper's most high-end and expensive mattress
  • Exceptionally cooling and supportive
  • Excellent motion isolation, but edge support could be better

The Casper Wave Hybrid Snow is a premium cooling mattress from popular bed-in-a-box brand Casper. Made from a mixture of foam and springs, it's an upgrade to the Casper Wave Hybrid (previously the company's most high-end mattress) and one of two models launched in April 2021 as part of Casper's new cooling collection

It shares the same premium support features as the original Casper Wave Hybrid - but the new Wave Hybrid Snow is also jam-packed with innovative cooling features. Casper claims the mattress delivers a six-degree cooler sleep temperature than the previous model. 

The Casper Wave Hybrid Snow also costs $500 more than the Wave Hybrid. A queen is $3,195 at full price, making this Casper's most expensive mattress. So it is worth it? We slept on the Casper Wave Hybrid Snow mattress for a month, and performed a series of tests to see whether its performance justifies its premium price tag.

Casper Wave Hybrid Snow mattress on bedframe in a bedroom

(Image credit: Casper)
At a glance: Casper Wave Hybrid Snow mattress

Best for: hot sleepers; people with restless partners; back sleepers
Type: mattress in a box
Firmness: medium-firm (7/10)
Materials: memory foam, natural latex, foam and innersprings
Depth: 13 inches
Weight: 70-143lbs
Sizes: Twin, twin XL, full, queen, king, Cal king

We can confidently state that the Casper Wave Hybrid Snow mattress is remarkable at regulating temperature throughout the night. Even our warmest reviewer noticed the immediate cooling sensation of the QuickCool Cover. If you overheat when you sleep, this is easily one of the best mattresses you can buy.

It's also very good at reliving pressure. Our neck and shoulders were cradled when we laid on our backs, and we felt the extra support by our waist and hips. If you're looking for the plush, sinking-in sensation of an all-foam mattress, though, you won't find that here. The Casper Wave Hybrid Snow is buoyant - you sleep closer to the surface, which helps keep the temperature down - and there's a bit more bounce thanks to the layer of springs, which makes it easy to change positions.

All sleeping positions were comfortable, but we found it best for back sleeping. Some of our testers would have liked more give, however, especially when sleeping on their sides. 

Couples who toss-and-turn will be pleased to know that the Casper Wave Hybrid Snow has excellent motion isolation. On the flip side, edge support is middling for a mattress of this price — something to keep in mind if you tend to roll towards the edge of the bed while you sleep.

Like all Casper's mattresses, the Wave Hybrid Snow comes with a 100-night risk-free trial, so you can test it properly by sleeping on it at home. You can also give it a try in-store at a Casper retail location. If you don't like it after the 30-night adjustment period, Casper will pick up the mattress to donate to charity and issue a full refund. If you do decide to keep the mattress, it'll be covered by a 10-year limited warranty.

See the Casper Wave Hybrid Snow from $2,095 at Casper
You can buy the Casper Wave Hybrid Snow from a few different retailers, including Target. However, we always recommend buying from Casper directly because other retailers have different return policies. So while you still get access to Casper's trial, returns policy and warranty, it can be more complicated to initiate them when you've bought through a third party.View Deal

Casper Wave Hybrid Snow Mattress: materials

Casper Wave Hybrid Snow layers

(Image credit: Casper)

The Casper Wave Hybrid Snow is comprised of six layers. The top three layers aid temperature regulation, with a QuickCool Cover on top that's infused with phase-change material. This is what creates the cool-to-the-touch sensation.

Next, there's a thin layer of breathable, perforated foam coated in cooling gel, followed by another layer of perforated foam, this time with six heat-wicking bands spaced horizontally across the mattress to pull heat away from your body. 

After this, there's a memory foam layer divided into three zones to provide pressure relief to your shoulders, waist and lower back, and help align your spine - they're firmer around the lower back and softer under the shoulders. Then there's a layer of gel pods to reinforce the support layer above. Finally, an innerspring base adds further support and lift, and helps circulate air through the mattress.

Casper Wave Hybrid Snow Mattress: Price

  • Most expensive mattress in Casper's lineup
  • Costs $500 more than the original Wave Hybrid 
  • Still significantly less than top rival the Tempur-Breeze

The Casper Wave Hybrid Snow is the company's top-of-the-line mattress and most expensive option. At full price, a queen-sized mattress costs $3,195, while a king goes for $3,056. The MSRP for a twin-sized mattress is $2,095, which is in the neighborhood of other companies' premium queen mattresses.

However, the Casper Wave Hybrid Snow is still a significant bargain versus the comparable Tempur-Pedic Tempur-Breeze cooling mattress with a starting retail price of $3,499 for a twin-long. (Of course, Tempur-Pedic has space-age tech from NASA on its side.)

Meanwhile, the original Casper Wave Hybrid mattress is roughly $500 less than the new Wave Hybrid Snow. Both iterations of the Wave Hybrid mattress feature continuous ergonomic zones with gel pods placed in the mid-section for added lower back support.

Here's the official pricing for the Casper Wave Hybrid Snow mattress:

  • Twin: $2,095
  • Twin XL: $2,295
  • Full: $2,995)
  • Queen: $3,195
  • King: $3,595
  • California King: $3,595

The Casper Wave Hybrid Snow has only been on sale since April 2021 so there aren't loads of Casper mattress deals around, but we did see 15% off during Casper's Memorial Day Sale. Here are today's lowest prices...

Casper Wave Hybrid Snow: Firmness and Comfort

Casper Wave Hybrid Snow mattress review: overheat view looking down on the mattress in a bedroom

(Image credit: Future)
  • A medium-firm mattress with a 7 out of 10 rating
  • Provides even full-body support for back sleepers
  • Top foam layer has some give but does not sink

The Casper Wave Hybrid Snow mattress comes in one firmness level. Based on our testing, we've rated it a 7 out of 10 on the firmness scale, with 10 being the firmest. That places the Wave Hybrid Snow in medium-firm territory. By comparison, the original Wave Hybrid is rated a 5 out of 10, despite both mattresses largely having the same overall support structure.

Anyone who is seeking a traditional memory foam feel won't find that with the Casper Wave Hybrid Snow. There is a minimal amount of give, but rather than sinking into the mattress you lie right on top of it instead.

We found the Wave Hybrid Snow most comfortable for back sleeping. It provides excellent all-body support for sleepers in that position, with a 'cradling' feeling around the head and shoulders plus a firmer mid-section to keep everything aligned.

Side sleeping on the Wave Hybrid Snow is also comfortable, but a couple of our testers would have liked slightly more give around their shoulders since the mattress didn't cradle that area as well in that position. Despite that, we still felt the mattress gave us an overall even level of support on our sides.

Of course, firmness and comfort are subjective. Our team of testers consists of individuals with varying weights, heights, and sleep preferences. Those who like the super-plush feeling of a traditional memory foam mattress may find the Casper Wave Hybrid Snow too firm for their liking. The same could be said for petite or underweight sleepers (130lbs and below) who might want a mattress with slightly more give to it.

Casper Wave Hybrid Snow Mattress: Performance

  • Mattress is cool to the touch and offers excellent temperature regulation
  • Very minimal motion transfer, which is good news for couples
  • Edge support is middling for a luxury-priced hybrid mattress

We slept on a twin-size Casper Wave Hybrid Snow mattress for four weeks. During this time we tested the mattress in all major areas of performance, rating it on pressure relief, motion isolation, temperature regulation, edge support and durability, as well as ease of set up.

In addition to our physical testing, we also analyzed hundreds of user reviews to build a comprehensive sense of what it's like to sleep on the Wave Hybrid Snow. Here are our findings. 


Casper Wave Hybrid Snow review: mattress rolled up in plastic

(Image credit: Future)

Score: 3.5/5

A twin-sized Casper Wave Hybrid Snow mattress weighs 70lbs. Meanwhile, a queen-sized Wave Hybrid Snow mattress weighs 111lbs and a king 145lbs. Suffice to say, if you have a friend or family member in the vicinity who can help get the mattress into your bedroom, take advantage of that (especially if steps are involved).

While I did need someone to help me carry the box upstairs from the garage to my bedroom on the next floor, it wasn't an entirely cumbersome process to set the mattress up solo. 

Unpacking and unrolling the mattress was rather uneventful — which is a good thing. (The included Sleeper's Manual helped, too.) Once the plastic was off, the mattress fully inflated within five minutes and was suitable to sleep on that night.


Score: 5/5

One of the less-glamorous aspects of purchasing a bed-in-a-box is off-gassing, the process in which vapors are released into the air upon removing the vacuum-sealed plastic. The result is often a lingering 'chemical' smell that lasts for hours or days. It's rarely ever dangerous, but often unpleasant. 

Fortunately, that wasn't the case when setting up the Casper Wave Hybrid Snow. There was nary a scent indicative of any obvious off-gassing by the time I went to sleep just hours after unfurling it on the bed frame.

Casper uses CertiPUR-US-certified foams in all of its mattresses. That means they're made without ozone-depleting chemicals and are low in volatile organic compounds (VOCs) that contribute to the initial unpleasant smell that plagues many memory foam mattresses.

Pressure relief

Casper Wave Hybrid Snow review: 56lb kettlebell placed in the centre of the mattress

(Image credit: Casper)

Score: 4.5/5

The Wave Hybrid Snow is a firm-yet-soft mattress, which appealed to most of our reviewers. We placed a 56lb weight in the center of the mattress to test this and while there was obviously some give, the weight didn't sink too deep. The mattress also returned right to form once the weight was removed. 

When it came to human bodies, our testers found the Casper Wave Hybrid Snow to have superior pressure relief for back sleepers. We felt our weight was evenly distributed in this position without sinking right into the top layer. However, those of us who prefer a softer mattresses would have liked a little more give along the lumbar region.

We also deem it quite comfortable for side sleeping, with sufficient all-body support and alignment. But again, some of us would have preferred a little more contouring around the shoulders in this position. This can be mitigated by finding the best pillow for side sleepers.

Casper Wave Hybrid Snow review: woman lying on the mattress on her side, with her head on a pillow

(Image credit: Casper)

To promote proper spine alignment, the Wave Hybrid Snow features continuous ergonomic zones. The area around the hips, waist, and lower back is firmer than the region around the shoulders. There are also 86 gel pods placed in the middle of the mattress to be situated right underneath the lower back.

How does that bode for stomach and combination sleepers? A firmer mid-region will limit the hips from sinking, making the Wave Hybrid Snow a good choice for most stomach sleepers. 

Although the Casper Wave Hybrid Snow is quite lofty at 13in high, sleepers weighing over 250lbs may not find adequate support, especially if they often sleep on their stomach. In that instance, something like the the Saatva HD mattress is worth seeking out as it's designed to sufficiently support a broader range of body types.

Motion transfer

Casper Wave Hybrid Snow mattress review: 56lb weight dropped on the bed with a wine glass still standing

(Image credit: Casper)

Score: 4.5/5

Since we reviewed a twin mattress, which is really only designed for one person to sleep on comfortably at a time, we performed a couple of drop tests to measure the motion transfer of the Casper Wave Hybrid Snow.

We placed an empty wine glass at one side of the bed and dropped a 10lb weight roughly 25in away from it. To simulate the effect of a partner tossing-and-turning, we dropped the weight from 4in above the mattress. To recreate the effect of a partner getting in or out of bed, we dropped the weight from 8in high.

The wine glass barely moved when the 10lb weight was dropped from 4in, which means you won't have to worry about a fidgety partner disrupting your sleep. There was slightly more motion from the wine glass upon the 8in drop, but it was still quite minimal, so your sleep is unlikely to be interrupted if your partner rolls in or out of bed at a different time than you do.

Temperature regulation 

Casper Wave Hybrid Snow review: hand touching the QuickCool cover

(Image credit: Casper)

Score: 5/5

All of our reviewers unanimously agree that the cooling element of the Casper Wave Hybrid Snow is its best and most defining feature. This mattress was cool to the touch from the moment we placed it on the bed, and remains as such. 

Like the original Wave Hybrid, the Casper Wave Hybrid Snow features the company’s proprietary Airscape cooling foam, which is perforated for maximum airflow. The Wave Hybrid Snow adds to that a QuickCool Cover that provides a 24% cooler-to-the-touch feeling than the original Wave Hybrid, and HeatDelete Bands that remove 34% more body heat away while sustaining temperature regulation for up to 12 hours. 

The result is the most comfortable and cooling rest our testers have enjoyed in a long time, especially in the midst of a Mid-Atlantic heat wave. For habitually warm sleepers, the cooling element of the Casper Wave Hybrid Snow is top-notch. 

Those who like to be wrapped in blankets while they sleep found the cooling cover to be off-putting at first. However, the goal of the Wave Hybrid Snow is to help maintain a comfortable sleeping temperature — and it excels at that.

Edge support

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Casper Wave Hybrid Snow: reviewer sitting on the edge of the mattress

(Image credit: Casper)
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Casper Wave Hybrid Snow review: 56lb weight placed on the edge of the mattress

(Image credit: Casper)

Score: 3/5

We tested the edge support using a 56lb weight and a human being (yours truly). The Casper Wave Hybrid Snow didn't blow us away in this area, but it didn't perform poorly, either.

First, we placed a 56lb weight on the edge of the mattress in the middle of the perimeter. The mattress was compressed by about two inches — going from 13in to 11in. However, there was the matter of the weight rolling off and landing on my leg...twice. (Yep. Ouch!) So the support there wasn't as sturdy as we'd like.

When it came to testing the edge support myself, there was more sinkage — expected, as I'm nearly three times the size of the weight. While I wasn't in danger of rolling off the bed, sitting on the edge became uncomfortable after a few moments. 

That said, the Casper Wave Hybrid Snow exceeds the edge support of other, cheaper memory foam mattresses I've slept on. But for a luxury-priced hybrid mattress, we expected a little more.


Casper Wave Hybrid Snow mattress review: graphic showing the different layers inside the mattress

(Image credit: Casper)

Score: 4/5

After a month of using the Casper Wave Hybrid Snow, we've yet to detect any obvious indentations or wear-and-tear. It also remains cool to the touch, just like the day we set it up. 

Of course, the Casper Wave Hybrid Snow is still quite new so there isn't any long-term data on it we can refer to right now. However, we can take a look at reviews of the original Casper Wave Hybrid for an idea of longevity.

User reviews for the Casper Wave Hybrid suggest that there is minimal, if any, degradation over time with regular use. Any complaints regarding the quality of the mattress were tied to the overall price — and keep in mind that the Wave Hybrid costs $500 less than the new Wave Hybrid Snow.

Given that this is a hybrid mattress and not an all-foam mattress, we anticipate the Casper Wave Hybrid Snow will have a lifespan that's befitting its premium price tag. 

Casper Wave Hybrid Snow Mattress: User reviews

It's important to remember that several factors influence an individual's experience of a mattress: height, weight, preferred sleeping position, and ideal temperature. For this Casper Wave Hybrid Snow review, we tested the performance and shared our experiences, but in an effort to cultivate a well-rounded perspective we've also analyzed as many Casper Wave Hybrid Snow mattress reviews as we could find.

But there is a slight caveat: the Casper Wave Hybrid Snow mattress was just released in April 2021. Casper has merged its reviews of the Wave Hybrid Snow with the original Wave Hybrid as well as the previous Casper Wave mattress for a cumulative score of 4.5 stars out of 5 stars from over 800 reviews. Fortunately, we can sort entries by date, but it's not always clear which exact mattress is being talked about in each review.

Since the Wave Hybrid Snow and Wave Hybrid otherwise have the same build — outside of the Wave Hybrid Snow's enhanced cooling technology, obviously — we can gather some impressions regarding support and durability of the Wave Hybrid Snow based on these reviews.

Favorable reviews of the Wave Hybrid (Snow) call out its firm-yet-soft feel. Several satisfied sleepers claim that the mattress has helped alleviate their back pain and shoulder problems.

Alternatively, most of the critical reviews of the Wave Hybrid (Snow) are from customers who experienced prolonged shipping delays. Performance-wise, common complaints say the mattress is too firm and has contributed to back pain. Conversely a handful of reviews say it's not firm enough. 

Unfortunately, it's difficult to discern any clear trends from these testimonials since detailed info like reviewers' weight and sleep style isn't always readily available.

Should you buy the Casper Wave Hybrid Snow?

Casper Wave Hybrid Snow review: mattress in the centre of a bedroom with plants on either side

(Image credit: Casper)

The Casper Wave Hybrid Snow mattress is worth the investment for anyone who sleeps warm and prefers a firmer mattress. The upgraded cooling technology from the original Wave Hybrid model is remarkable, right down to the always-cool QuickCool Cover. The motion isolation is also excellent, which should make couples happy.

However, it does come at quite a cost. After all, the Wave Hybrid Snow mattress is Casper's top-of-the-line offering. It doesn't allow for flexibility in firmness like the comparatively-priced Purple Hybrid Premier or the ultra-premium Tempur-Pedic Tempur-Breeze. On the other hand, the Casper Wave Hybrid Snow likely outpaces the Hybrid Premier when it comes to temperature regulation and is also much less expensive than a Tempur-Pedic mattress.

Bottom line, the Casper Wave Hybrid Snow is a superior cooling mattress that will leave most back and side sleepers feeling comfortably refreshed in the morning. It's by far the best mattress Casper has to offer right now.

Casper Wave Hybrid Snow Mattress: Competitors

1. Purple Hybrid Premier mattress

Purple Hybrid Premier mattress product shot

Type: Mattress in a box
Firmness: 5-6 out of 10 (10 is firmest)
Materials: Purple gel grid and springs
Height: 12 or 13 inches
MSRP: $2,099 - $4,948

The Purple Hybrid Premier is a competitively-priced luxury hybrid mattress. It isn't marketed as a cooling mattress, per se, but it's made from a unique gel grid that has thousands of air channels inside to boost airflow and keep you cool. This grid works in tandem with a layer of coils, and flexes under your shoulders and hips to relieve pressure while supporting your spine. 

Unlike the Casper, it comes in two different heights, so you can choose between having a softer or firmer mattress. There's even an option to buy a split king, which can benefit couples with drastically different sleep preferences.

Choose it if: you want more height, firmness and size options
Avoid it if: you prefer a traditional mattress feel over gel

2. Cocoon Chill Hybrid mattress

Cocoon by Sealy Hybrid mattress product shot with two pillows

Type: Mattress in a box
Firmness: 6 out of 10 (10 is firmest)
Material: foam and springs
Height: 12 inches
MSRP: $999 - $1,699 

The Cocoon Chill Hybrid mattress is a mid-range competitor to the Hybrid Wave Snow, and a suitable alternative for anyone who doesn't have the budget for Casper's premium option. It's also slightly softer with an adaptive top foam layer that conforms to the shape of your body for a cushioned feel. Meanwhile, its top cover is cool to the touch and wicks away body heat — similar to the Wave Hybrid Snow's QuickCool Cover. 

(You can save even more money if you choose the lower-mid-range, all-foam Cocoon Chill Memory Foam mattress, which boasts the same cooling technology, with a plusher feel.)

Choose it if: You're on a smaller budget
Avoid it if: You want the most premium cooling tech possible

3. Tempur-Pedic Tempur-Breeze

Tempur-Pedic Tempur-Breeze

Type: mattress in a box
Firmness: varies
Material: foam; or foam and springs (hybrid)
Height: 13 inches
MSRP: $3,499 - $8,398 

The Tempur-Pedic Tempur-Breeze is a luxury cooling mattress that offers more variety than Casper Wave Hybrid Snow. There's the Pro Breeze, which promises a three degrees cooler sleep and comes in a full-foam medium or medium hybrid option. 

Then there's the more expensive full-foam LuxeBreeze, which aims to make you eight degrees cooler and is available in either firm or soft. Of course, the Tempur-Breeze comes at a significant cost (even after discounts), but the trade-off is the flexibility to pick a mattress that best suits your sleep preference...and NASA technology.

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Alison Barretta

Alison is a freelance writer and editor from Philadelphia, USA. She's been sharing buying advice and retail news for over a decade. When she isn't hunting for deals, Alison can be found teaching/training in martial arts, fawning over skincare, reviewing mattresses, and indulging in her quarantine-borne hobby: cooking.