Cocoon vs Casper Mattress 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.

---

Cocoon vs Casper Breakdown

Key Similarities

• All-Foam Mattresses: Both of these beds are constructed from memory foam and polyfoam.
• Warranty: The Cocoon Chill and Casper mattresses are each covered by an industry standard 10 year warranty.
• Trial Period: With either mattress, you get a 100 day sleep trial to get the feel of the mattress in the comfort of your home.
• Firmness Levels: The Casper and Cocoon Chill mattresses have a medium-firm feel, which is around 6/10 on the firmness scale.

Key Differences

• Pricing: For all but the full and queen sizes, the Cocoon Chill will cost you up to $135 more. The biggest difference in cost is for the smaller mattress sizes.
• Support Features: The Cocoon Chill has a “Perfect Fit” comfort layer that adapts to your body type. The Casper features a zoned support layer with three targeted ergonomic regions.
• Cooling Technology: Casper keeps you cool with breathable open-cell foam, while the Cocoon Chill has a cool-to-touch cover.
• Thickness: The Casper mattress is 11” thick, while the Cocoon Chill is 10” thick. This won’t make a big difference to the average sleeper, but it’s important when you’re buying sheets or measuring your sleep space.

---

Casper Mattresses Offer a Bit More Surface Area

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.

	Cocoon Chill	Casper
Thickness	10″	11″
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.

---

Casper Tends To Be More Affordable

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.

	Cocoon Chill	Casper
Twin	$730	$595
Twin XL	$770	$695
Full	$850	$995
Queen	$1,080	$1,095
King	$1,310	$1,295
California King	$1,310	$1,295

 

---

Compare the Memory Foam Constructions

Ever wish you could cut a mattress in half to see the layers? There’s no need—we’ll show you how each of these mattresses looks on the inside.

---

Score Breakdowns

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.

	Cocoon Chill	Casper
Shipping	8	10
Trial Period	9	9
Return Policy	10	10
Warranty	9	9
Set-Up Test	8	8
Motion Transfer Test	9	8
Edge Support Test	9	9.5
Pressure Relief Test	8.5	8.5
Spinal Alignment Test	9	9.5
Responsiveness Test	9	10
Cooling Evaluation	7.5	7
Durability Evaluation	8	8
Customer Service Score	9	9
Social Impact Score	4	9
TOTAL SCORE	8.7/10	9.1/10

 

Motion Transfer

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.

Pressure Relief

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.

Cooling

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. 

Responsiveness

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.

---

Verdict: Which Is the Best Mattress?

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.

Other Casper Comparisons

• • Casper vs Tuft & Needle
  • Casper vs Purple
  • Casper vs Saatva
  • Casper vs Zinus