The Cocoon and Casper mattresses are similar on paper, but does that translate into real-life performance? That’s what we’ll reveal in this comparison.
Cocoon and Casper are both trusted bed-in-a-box mattress brands with popular memory foam mattresses. If you’re looking for a new mattress, the Cocoon Chill and Casper are affordable options with excellent performance and functionality scores.
So how do you choose? That’s the topic of this comparison. The Cocoon Chill and Casper mattresses have some key differences that will likely help you take the plunge on one or the other. Specifically, we’ll talk about our review scores, pricing, construction, and performance.
Cooling memory foam mattress by Sealy
10-year limited warranty
Universal firmness mattress for the average sleeper
10-year limited warranty
Take a look at how the Cocoon Chill and Casper mattresses differ by dimension. The Casper is slightly thicker, and the Cocoon Chill has extra precise sizing.
|Twin||38″ x 74.5”||38″ x 75″|
|Twin XL||38″ x 79.5”||38″ x 80″|
|Full||53″ x 74.5”||53″ x 75″|
|Queen||60″ x 79.5”||60″ x 80″|
|King||76″ x 79.5”||76″ x 80″|
|California King||72″ x 83.5”||72″ x 84″|
Learn more about mattress sizes.
You can see how the Cocoon Chill and Casper mattresses are priced below. Generally, the Casper is lower cost, except for the full and queen sizes, which range from $15–$145 more than the Cocoon Chill.
The Cocoon Chill is constructed with three foam layers. All of the foams are made in the USA and CertiPUR-US certified for non-toxic materials and low emissions.
The Casper mattress is made of three layers of foam that are CertiPUR-US certified and intentionally designed to provide breathability and pressure relief.
We put both of these mattresses under the magnifying glass during our in-depth review process. You’ll notice that the Cocoon Chill and Casper scored pretty similarly, but marginal differences can make a noticeable difference.
|Motion Transfer Test||9||8|
|Edge Support Test||9||9.5|
|Pressure Relief Test||8.5||8.5|
|Spinal Alignment Test||9||9.5|
|Customer Service Score||9||9|
|Social Impact Score||4||9|
Have you been woken from a deep sleep by a partner who gets out of bed in the wee morning hours? Then pay special attention to motion transfer. During our review process, we measure how well a mattress isolates motion on the mattress surface.
The Cocoon Chill and Casper each earned above-average scores, but the Cocoon Chill scored a whole point higher. If you’re an especially light sleeper, the Cocoon Chill will do a better job of minimizing sleep disturbances from sleeping partners, pets, or children.
No matter which sleeping position you favor, you need pressure point relief. Side sleepers need the most pressure relief for a good night sleep, since they put a lot of weight on their shoulders and hips. Stomach sleepers also need to cushion their ribs and hips. Even back sleepers need a touch of softness between them and the base layers of an extra firm mattress.
The Cocoon Chill and Casper mattresses both received an 8.5/10 for pressure relief. In this case, you’ll need to defer to other categories to make your decision. For example, side and stomach sleepers will want maximum spine alignment, while combo sleepers need a responsive bed.
You would think that this would be a decisive category in our Cocoon Chill versus Casper mattress comparison, but again, the scores are within .5 points of each other. Predictably, the Cocoon Chill takes the cake in the cooling comparison. The phase change materials in the cover do a decent job of keeping you comfortably cool, even on hot summer nights.
We measure responsiveness by asking our professional testers to repeatedly change positions on top of a mattress and then rate how easy it was to get comfortable. The Casper received a perfect 10/10 score for responsiveness, while the Cocoon Chill earned a near-perfect 9/10. These are both remarkably high scores for memory foam beds, which have a tendency to preserve body impressions long after the sleeper has moved on.
This category is the most relevant for combo sleepers, who switch from position to position during the night. The Casper does an amazing job of keeping up with your pace, so it’s just a little bit better for combo sleepers.
The Cocoon Chill and Casper mattresses earned similar performance scores, but Casper is slightly better for combo sleepers, side sleepers, and those who use the edge of the bed. Cocoon Chill is the better choice for hot sleepers and couples. Casper is more affordable, except for full and queen sizes.
With such close scores, you may be tempted to think that there’s no way to decide which is the best mattress. To the contrary, one of these mattresses better suits your particular needs. We recommend factoring in the scores for your top 2–3 performance priorities, along with your budget. And don’t forget that you get a 100 day sleep trial and 10 year warranty with whichever mattress you choose.