Cocoon Mattress Review

Customer's Rating


Editor's Rating


Prices and Sizes
Twin – $399

Twin XL – $499

Full – $649

Queen – $799

King – $999

Cal King – $999

Cocoon by Sealy soft mattress

Cocoon Mattress Overview


The Cocoon mattress is made by Sealy, a traditional mattress brand known in the U.S. as a household name long before its foray into the direct to consumer mattress market. The Cocoon mattress comes in two firmness levels and is primarily made of memory foam. Cocoon also makes an additional mattress called the Cocoon Chill, but in this review, we’ll be talking about the classic Cocoon mattress only.  



  • Two firmness options: There aren’t a lot of direct to consumer mattresses that offer different firmness options. The soft Cocoon rates at a 3-7.5 out of 10 on the firmness scale. The firm Cocoon option rates at a 7.5-9.5 out of 10. This is helpful for anyone who knows that they have a strong preference when it comes to firmness.



  • Temperature control: Some sleepers find memory foam to be a heat retaining material, especially with softer mattresses that envelop more of the surface area of the body. Many reviewers mention that this mattress sleeps a bit hot. So if you are interested in a Cocoon bed but are worried about temperature, you may want to look at the Cocoon Chill instead, which is designed for a cooler sleeping experience.


Our Verdict

The Cocoon has its strengths and weaknesses. At the end of the day, it is a solid and competitively priced option that is likely to give you years of comfortable sleep. If you love the sensation of sinking into memory foam, the Cocoon will not disappoint. But if heat retention and responsiveness are big issues for you, you may want to continue shopping around.


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Cocoon Mattress Construction


The Cocoon by Sealy bed is made up of three foam layers. In both firmness options, the first and third layer are the same. The middle layer, however, will be a bit denser in the firm option. This bed is 10 inches tall and weighs in at 64.4 pounds.

  1. Perfect Fit Memory Foam: The first layer is called Perfect Fit Memory Foam — a proprietary blend of foam created by Sealy just for this mattress. This foam is intended to mold to the contours of different body types to ensure ergonomic positioning regardless of your size or shape.
  2. Comfort Foam Layer: The second layer down is the comfort foam layer, which is what changes when you order the soft or firm version of the mattress. If you order the soft version, this layer is softer and creates more cradling and sink. With the firmer of the two options, this middle layer adds support and keeps you from sinking in too deeply to the mattress.
  3. Support foam layer: The thickest layer of the Cocoon mattress is also the densest. This base layer provides shape and sturdiness to the bed while ensuring resilience and bounciness to counterbalance the sinkage created by the supple layers above.


These three layers are held within a fabric cover made of spun poly fibers. This polyester fabric is breathable, adding to the coolness and airflow of the mattress.


Cocoon Mattress Construction


How Does the Cocoon Mattress Feel?



The Cocoon mattress comes in two firmness options. The soft option is a 3-7.5 out of 10 on the firmness scale, while he firm Cocoon option rates at a 7.5-9.5 out of 10. If you are noticing that the soft option is pretty broad in its range there, it certainly is. The softer option does create a sense of sinking deeply into the mattress, but not so much so that it is unpleasant. This is probably the better option for side sleepers. The firmer option, better for back and stomach sleepers, is quite firm. So if you love a firm bed, the firm Cocoon might be just right for you.



True to its name, the Cocoon bed envelopes the sleeper’s weight with a lot of memory foam support. The level of sinkage you experience will depend on the firmness option you choose. But both the soft nor the firm version of the Cocoon have a good sinkage factor. You can expect to feel contoured and cradled without sinking so far in that you are overheated or unsupported.


Responsiveness and Bounce

Being a memory foam mattress, the Cocoon bed offers more sinkage and cradling than it does responsiveness and bounce. Especially with the softer version of the mattress, you will probably feel that there is not a ton of responsiveness to the touch. The firmer option will have more of a bouncy feel, but overall this is a true memory foam experience.


Motion Transfer

The Cocoon bed is average in regards to motion transfer. You will not feel your partner’s every move from the other side of the bed, but there is a good chance that some motion will make its way over to you. This can be an issue for particularly light sleepers who need to know that their partner getting up in the middle of the night for a glass of water isn’t going to impede their sleep schedule.


Heat Retention

Heat retention is one way in which the Cocoon may disappoint some sleepers. That’s likely why Sealy decided to come out with a slightly more expensive option called the Cocoon Chill, which uses more technology aimed at creating a cooler sleeping environment. It is hard to make a memory foam mattress that doesn’t trap heat, as that is one of the inherent qualities of the material.


Edge Support

This mattress does not have the greatest edge support. When you are lying near the edge of the bed, you may feel less secure than when you are lying closer to the center of the mattress. Edge support usually isn’t a big enough issue to sway a mattress purchase because it does not have a huge impact on normal use experiences. This is not so much of a problem that it would impact normal motions like rolling or adjusting positions on the bed.


Off-Gassing & Smell

Any mattress that comes sealed in plastic will produce some initial smell upon unboxing. This is totally normal and tends to fade away in a couple days if not hours after allowing your mattress to fully expand. That being said, the Cocoon mattress does have a bit more off gassing than some of its competitors. It is nothing to worry about but may be inconvenient for a night or two.


Cocoon Mattress Quick Facts


  • Certifications: Certi-PUR U.S.
  • Where is it made? U.S.A.
  • Does it need a foundation? No
  • Does it work on adjustable beds? Yes
  • Shipping: Free (UPS)
  • Sleep Trial: 100 nights
  • Warranty: 10 years


Side view of Cocoon bed


Customer Feedback


The Cocoon mattress has an average of 3.5 stars out of 5 on Amazon, with many high and low reviews. Some of the biggest mentions among positive reviews are about the Cocoon’s comfort and ability to offer pressure and pain relief.

The more negative reviews focus on off gassing smells, heat retention, and issues with delivery. Some direct to consumer mattress brands deliver their mattresses themselves, with certain brands even offering to haul away your old mattress free of charge. The Cocoon uses UPS to deliver their beds, so they do not offer the same white glove services and customers can — very rarely — run into postal issues.

★★★★★ “Did A LOT of research before buying. Cocoon by Sealy is the way to go. People who have tried it versus Tuft & Needle and Casper say Cocoon is by far the most comfortable. I had a few questions and talked to Cocoon customer service – they were super helpful. I like that is backed by a company with an established reputation for making a great product. I also like that there was a choice of comforts. I went with the firm, b/c I like having a little extra support. Thanks Cocoon!” — Patrick,

★★★★☆ “This mattress is a nice switch from a pillow top, traditional mattress (and quieter too). I do get hot with the foam, I wish there was some cooling gel but overall a good solid mattress.” — Grant,


We Recommend The Cocoon Mattress For…

The Cocoon mattress is a great economical option for shoppers who want a memory foam bed. Each of the different sizes come in at less than $1000, so anyone looking for a bed for their dorm room, first apartment, or guest room may like its competitive price.

If you are a back or stomach sleeper, you should probably go with the firmer option. Side sleepers will find that the softer option gives them better pressure relief.


Cocoon Mattress Review – Conclusion

All in all, the Cocoon mattress by Sealy has its fair share of pros and cons. It does not perform quite as well as some of its competitors in terms of motion transfer, edge support or heat retention. However, many reviewers find that it offers them an ultra comfortable sleeping environment at a good price point.

If you like the feel of memory foam and you are looking for a basic mattress that will provide comfort and support, the Cocoon is a solid option.


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