Casper Snow Review

Note – As of March 2024, the Casper Snow is only available in Canada. If you’re in the US you’ll need to buy the Casper Snow Hybrid (see our review here).

In This Review
Performance Tests | Firmness | Support & Sleeping Positions | Design | Materials | Comparisons | FAQs

At NapLab, we put each mattress to the test.

We test 10 different factors that impact the performance, comfort, and value of the mattress. We then take the results of that test and compare to every mattress we’ve tested to date.

Check out the full performance table below to see how this mattress ranks:

Factor	Casper Snow	Average
Overall Score	8.72	8.57
Price (Queen)	C$2,399	$1,332 (Hybrid only)
Cooling – Score	10	8.7
Sinkage – Depth	2.14″	2.14″
Sinkage – Feel	Moderate	Moderate
Motion Transfer – Score	7.5	8.2
Motion Transfer – Acceleration	10.55 m/s²	8.78 m/s²
Response Time – Score	7.5	8.9
Response Time – Mostly Recovered	0.6 sec.	0.4 sec.
Response Time – Fully Recovered	1.2 sec.	0.9 sec.
Bounce – Height	8.73″	9.53″
Bounce – Feel	Moderate	Moderate
Edge Support – Score	9.4	8.6
Edge Support – Sitting	3.25″	4.04″
Edge Support – Lying	Excellent	Good
Sex – Score	8.5	8.4
Pressure Relief – Score	9.0	8.7
Comfort Layer Thickness	3.0″	4.1″
Mattress Thickness	12″	12.0″
Off-Gassing – Score	8.1	8.1
Off-Gassing – Smell	Strong	Strong
Off-Gassing – Days	7 days	7 days
Company – Score	8.5	8.7
Trial	100 nights	177 nights
Warranty	10 years	25% have lifetime warranties, average of other 75% of mattresses is 13 years

How is the Casper Snow Different?

Compared to the average, the Casper Snow had better performance overall but also comes in at a higher price point.

Advantages

True to its name, the Snow has notably better cooling performance. It also excels in the level of support it offers both sitting and lying at the edge of the mattress.

Finally, the level of pressure relief it offers is slightly better than most mattresses and will most likely prove satisfactory for most sleepers. Though, there is a little room for improvement there.

Neutral Factors

As far as preferential factors are concerned, the Snow has less sinkage and bounce than average. This is not necessarily good or bad. Just be aware of your preference for being enveloped by your mattress and how much bounce feels good to you.

Disadvantages

The Snow had higher levels of motion transfer than average. Furthermore, it was a good deal slower in our response time test in both metrics we record. Overall, it is a bit less lively of a surface than the average mattress we test.

The Snow only has 3.0″ of comfort materials, which is a contributing factor for the higher motion transfer, as this is over 1″ thinner than the average comfort thickness.

Cooling performance on the Casper Snow is outstanding. During our tests, I felt no significant level of heat retention around my body. The mattress has a lot going for it in terms of cooling.

First up, the hybrid design provides ample airflow in and out of the mattress. In addition, the limited 3.0” comfort layer keeps the total foam volume more restrained, so there is less physical material in which heat could be absorbed. The Casper Snow also uses a cooling cover.

• Baseline Temperature – the temperature of the mattress before anyone lies on it
• Maximum Temperature (0 minute) – the temperature of the mattress after lying on it for 15 minutes
• Ending Temperature (5 minute) – the temperature of the mattress after being lied upon and having no one on it for 5 minutes

Casper states that it uses a “specialized cooling yarn” within the cover. In my experience, it feels like most other phase change fabric covers I’ve tested.

Furthermore, Casper explicitly states they use a sprayed-on phase change material atop the first layer of foam. Both the cooling cover and phase change material spray work together to create a cool-to-the-touch feel.

Finally, the mattress uses what Casper calls their “Heat Delete Bands”.

These are thin pieces of flexible metal (just a bit more rigid than aluminum foil) are designed to help absorb and retain heat further away from your body.

In my view, these feel like a marketing gimmick more than anything else. They aren’t hurting anything, but I am hard-pressed to believe these thin sheets of metal are having a sizable impact on cooling performance.

Instead, it’s the foams, phase change materials, and hybrid design that are having the greatest impact, in my view.

Heat Dissipation Over Time

Looking at our objective data, we measured a maximum surface level temperature of 90.9°.

From minutes 0 to 1 the temperature reduced by 5.1° and from minutes 0 to 5 that reduction was 7.6°. Overall, I’m exceedingly pleased with the level of cooling performance on the Casper Snow. 

The Casper Snow has moderate sinkage. During our tests, we measured a pressure point sinkage depth of 2.14″. This is equal to the average sinkage depth of 2.14″, based on all of our tests to date.

The level of sinkage is documented in the image below.

Despite the more modest sinkage depth, the Casper Snow creates a dramatic and exacting contouring body hug. Despite the hybrid design, it still maintains far more of a memory foam feel in the way that it wraps around the body.

This type of feeling is neither good nor bad, but it is more polarizing. For those who love the contouring hug of memory foam, it’s a perfect fit.

The Casper Snow has a moderate level of motion transfer. During our tests, we measured a total acceleration range of 10.55 m/s². This is 20% more motion transfer than the average of 8.78 m/s².

The level of motion transfer is documented in the video below.

The relatively thin 3.0” comfort layer and pocketed coils create the right environment for the higher levels of motion we recorded during our tests.

In our motion transfer chart, which visualizes our accelerometer data, we can see the highest motion peaks from 0 to 0.14 seconds.

Motion declines thereafter, but it’s not until 0.99 seconds that we return to near-zero levels. Neither the motion peaks nor motion duration tell a great story here.

Mattresses with the least motion transfer are able to return to near zero levels within 0.3 seconds and have acceleration peaks in the sub 5.0 m/s² range.

The Casper Snow has a moderate material response. In our mostly recovered test, we measured a recovery speed of 0.6 seconds, which is 0.20 seconds slower than the average of 0.40 seconds, based on all of our tests to date.

In our fully recovered responsiveness test, we measured a recovery speed of 1.2 seconds, which is 0.30 seconds slower than the average of 0.90 seconds.

The level of responsiveness is documented in the video below.

Casper’s Snow trails behind the average, but only slightly. In any case, the absolute recovery speed is still quite good and I don’t expect this will be an issue for most sleepers.

The Casper Snow has a moderate level of bounce. During our tests, we measured a total bounce height of 8.73″. This is 0.80″ less bounce than the average of 9.53″, based on all of our tests to date.

The mattress provides enough bounce to improve ease of movement and sex, but not so high as to make motion transfer out of control. The Snow is on the lower end, but still within an acceptable range.

The level of bounce is also documented in the video below.

Ideally, I want to see 8-12″ of total bounce height.

During our tests, I felt that the mattress had sufficient bounce that it was still easy to move around on the mattress and it did not overly hamper sex performance. Overall, I think the level of bounce is perfectly fine.

The Casper Snow has excellent edge support for both sitting and lying. In our sitting edge support tests, we measured a total sitting sinkage of 3.25”. This is 0.79” less sinkage than the average of 4.04”.

When it comes to sitting sinkage I like to see 4.0” or less. The Snow easily hit and exceeded that mark. I felt fully supported even when sitting directly on the edge of the mattress. Lying edge support was equally as good.

The level of edge support while seated is documented in the images below.

During our tests, I felt well-supported in all sleeping positions even when lying directly on the edge of the mattress.

The level of edge support while lying is documented in the images below.

The Snow’s hybrid design, and more importantly, support foam that runs across the entire perimeter of the mattress, creates ample support even at the very edge of the mattress. Overall, I’m pleased with the level of edge support performance on the Casper Snow.

The Casper Snow has good sex performance. On the positive side, Edge support is excellent at 3.25″ of sitting edge sinkage, which is 0.79 less than the average of 4.04″. Noise, pressure relief, and cooling are all positives also with good performance levels.

On the negative side, bounce is less than ideal. In our tests, we measured 8.73″ total bounce, which is 0.80″ less than the average bounce height of 9.53″.

Sex Factor	Factor Weight	Score	Rating
Bounce	65%	7.9	Moderate
Edge Support	20%	9.7	Excellent
Noise	5%	10	Minimal
Pressure Relief	5%	9.0	Excellent
Cooling	5%	10	Outstanding

Bounce makes up 65% of the total sex score and really drags down the performance in this test.

Pressure relief on the Casper Snow is excellent. During our tests, I felt no significant level of pressure point build-up anywhere on my body.

The Snow does a great job of creating a sufficient mix of support and pressure-relieving comfort.

The material choices and layering design check most of the boxes I look for. We have 12” of total materials with 3.0” of those inches being comfort material.

The comfort layer thickness is the only area that is holding the Casper Snow back (albeit, in a minor way). 3.0” is the minimum thickness of a comfort layer that I like to see.

A thinner comfort layer can cause some sleepers to feel more pressure, especially heavier-weight bodies and side sleepers.

Based on all of our tests to date we have measured an average comfort layer thickness of 4.1”. Casper’s Snow has 1.1” less comfort material than the average.

The relative thinness of the comfort layer is the only notable area of concern I have with respect to pressure relief.

Despite these concerns, I still felt that the overall pressure relief performance was excellent. The Snow is quite comfortable for only using 3.0” of comfort material.

Off-gassing on the Casper Snow is strong upon the initial unboxing and the mattress took a full week to off-gas completely. A 7-day off-gassing duration is the average time it takes so it’s right on par with many other mattresses.

That being said, I will say, that this smell was unusually strong, mimicking the smell of wet paint more so than traditional foam.

I can’t say exactly why the smell was so strong. This could be a product of the spray-on phase-change material or other specialized foam products within the mattress.

Casper’s company terms and conditions are pretty typical compared to what we see across the industry. They offer a 100-night trial period and a 10-year warranty on any of their mattresses.

Company Factor	Factor Weight	Score	Data
Trial Period	15%	8.0	100 nights
Warranty	10%	8.0	10 years
Shipping	5%	10	$0
Returns	20%	10	$0
Trust	50%	8.0	Good
Country of Origin	0%		USA

Comparing all mattresses tested to date, the average trial length is 177 nights so Casper’s trial is shorter than average. That being said, 100 nights should still be enough time for you to properly decide if you like the mattress or not.

The Casper Snow has a medium firmness with a feel of 5 out of 10, where 10 is the most firm. This firmness is suitable for a wide range of sleepers and is slightly softer than many other medium-firm mattresses we’ve tested.

On average, the most common firmness is 6 out of 10 (a medium-firm feel). Being slightly softer, the Casper Snow is an excellent pick for side sleepers or anyone looking for a bit more contour and softness.

Support on the Casper Snow is excellent. During our tests, I felt well-supported in all sleeping positions. As with pressure relief, the material choices and layer design check most of the boxes I look for.

We have a 12” total profile height with 9.0” being support materials. Having a 3.0” support foam foundation is excellent.

The 6.0” layer of pocketed coils is a little on the thinner side, as an 8.0” coil unit is generally going to offer higher performance. An 8.0” coil unit is generally more standard in high-performance hybrid mattresses.

The Casper Snow provides zoned support, which means more support in the middle of the mattress where body weights are heaviest. The Snow creates this zoning through a firmer piece of comfort foam immediately atop the support coils.

Notably, the coil unit is not zoned, nor does it have edge support zoned coils. This is another area where performance is good but could be better.

In general, I’ve found zoned support coil systems to offer better support performance relative to zoned foam.

Sleeper Weight	Stomach Sleepers	Side Sleepers	Back Sleepers
Under 150 lbs.	Yes	Yes	Yes
150-250 lbs.	Yes	Yes	Yes
250-300 lbs.	Yes	Yes	Yes

All that said, overall I still found support to be excellent. Provided you like the medium 5 out of 10 firmness I expect most sleepers will find the support to be perfectly acceptable.

Design

The Casper Snow is a 12″ hybrid mattress with a medium feel. It is a touch softer than the Casper Original Hybrid and also thicker as well.

It has a thin cover followed by a 3″ comfort layer that contains a 3-zoned comfort system with different foam densities in different areas of the mattress.

Materials

The Casper Snow has four distinct layers that make up the mattress. From top the bottom, these layers include:

• 1.0″ poly foam
• 2.0″ poly foam (3 support zones)
• 6.0″ support coils
• 3.0″ support foam

Despite the simple list above, the law tag is more complex than we generally see. It reads:

• 89% polyurethane foam pad
• 6% rayon fiber pad
• 3% gel
• 2% blended fiber batting (84% rayon, 15% polyester, 1% spandex)

The Cover

The cover of the Casper Snow mattress is thin and breathable. It is stitched with a cooling yarn that helps give the mattress a “cool-to-the-touch” feel. Beneath the thin fabric cover is a top layer of poly foam that is sprayed with a phase-change coating.

Technically the phase-change spray is a part of the comfort layer, but since it largely impacts the performance of the cover, I’m including it here.

The Comfort Layer

The actual comfort layer is made of two layers of foam. The top layer is a 1.0″ poly foam layer, where the middle section of this foam is sprayed with the phase-change cooling coating.

Below the poly foam is a second layer of poly foam with an overall thickness of 2.0″. This secondary layer is split into three sections.

The section in the middle (dark blue) provides more support than the sections at the head and foot (lighter blue).

Casper is calling this layer “memory foam” on their website, but the law tag just says poly foam. Despite the name, it behaves essentially exactly like memory foam (slower response, more contour, more hug, etc.)

Heat Delete Bands

Between the first and second layers of comfort foam are what Casper calls their “heat delete bands” to pull heat away from the body.

I cut away a piece of the foam so we could actually see what they look like…ultimately, I’m really not sure what to think of these. They appear to be sheets of very thin metal.

The concept of a metal heat sink is well-established and used in numerous industries. However, the metal is usually in closer proximity to the heat source and the cooling ability is directly related to the quantity of metal present.

Given the distance from the sleeper’s body and the thinness of the sheets, I am more than a little skeptical of these heat bands.

The Support Layer

The support layer is made of 6.0″ support coils and a 3.0″ slab of high-density support foam at the base.

The edges of the mattress are reinforced with a thick foam perimeter, which encases the coils and improves support.

Overall, I’m happy with the support system on the Casper Snow. Generally, I like to see 8.0″ of pocketed coils, but when coupled with the 3.0″ support foam, overall performance is acceptable.

Product Evolution

The Casper Snow was launched in early 2023 and provides another hybrid option for Casper sleepers to consider.

The Snow was added to the collection as a more luxurious alternative to the Casper Original Hybrid. Compared to the Original Hybrid, the Snow has improved cooling performance as well as a thicker overall profile.

But that being said, in 2024, the Casper Snow was discontinued from the US market and is currently only being sold in Canada. In the US, a new Casper Snow Hybrid hit the scene.

Check out the side-by-side below for a quick comparison of US vs. Canada.

Other Mattresses to Consider

Not sure that the Casper Snow is the best pick for you? Check out these three other top-performing Canadian hybrids you may want to consider.

Frequently Asked Questions

Still have questions? Check out some of the top FAQs on the Casper Snow mattress below and get the answers you’re looking for.

Disclosure – Derek Hales has a history with Casper that some may view as relevant to his reviews of Casper products. In 2016, Casper Sleep sued Derek Hales in federal court over his reviews of its products. In 2017, the lawsuit ended with a settlement. See here for more information.