The Tuck team collected and analyzed 347 verified customer experiences from 10 unique sources and spent over 40 hours testing this mattress in our lab for this review. This research is supported by you, our readers, through our independently chosen links, which earn us a commission. Read more about what we do here.
Cocoon by Sealy offers two different mattress models. Both the Cocoon Classic and Cocoon Chill are constructed with a comfort layer of memory foam and a support layer of polyfoam, and are available in two firmness options. The difference between the two models is the cover. The Classic’s cover is constructed with a blend of polyester and cotton, while the Chill is equipped with a polyester-cotton stretch-knit cover containing phase-change material (PCM) to be cool to the touch.
Our review of the Cocoon mattresses found that motion was contained quite well when a sleeper was moving about the mattress. We also found the phase change material to be cool to the touch mitigating the normal heat trapping found in most foam mattresses.
While sleep preference differs from person to person, we would recommend heavier sleepers going with the ‘firm’ model for support purposes while lighter sleepers go with the ‘soft’ option.
Two firmness options available
Excellent motion isolation
Premium cooling Phase Change Material available in Chill model
Great price point
Backing from reputable company (Sealy)
Weak edge support
Some potential for off-gassing
Graded ‘F’ by the Better Business Bureau (Sealy)
Multiple Firmness Options
Good for Back Pain
Full mattress details
10 Year, Limited
Durability appears to be average for the Cocoon Classic, but the brand was launched in March 2016 and the overall lifespan for these mattresses has not been fully assessed.
According to owners, the Cocoon Classic absorbs and isolates motion transfer to a significant extent.
Owners report that Cocoon Classic mattresses conform very closely and relieve a fair amount of pressure; two available firmness ratings accommodate sleepers with different contouring preferences.
Owners with ‘Firm’ Cocoon Classic mattresses say they are somewhat responsive and bouncy, but the ‘Soft’ mattresses are not responsive enough for most couples.
The Cocoon Classic sleeps fairly hot, according to owners.
Like most memory foam models, Cocoon Classic mattresses produce some off-gassing odors when unpackaged — but the smells will usually dissipate within one or two days.
Cocoon Classic mattresses offer little to no edge support, and premature sinkage has been reported along the edges where people tend to sit.
The Cocoon Classic is virtually silent when bearing weight.
Good for Back Pain
Full mattress details
10 Year, Limited
Durability appears to be average for both Cocoon mattress models, but Cocoon by Sealy launched in March 2016 and the overall lifespan for these mattresses has not been fully assessed.
According to owners, the Cocoon Chill absorbs and isolates motion transfer to a significant extent.
Owners report that Cocoon mattresses conform very closely and relieve a fair amount of pressure; two available firmness ratings accommodate sleepers with different contouring preferences.
Owners with ‘Firm’ Cocoon mattresses say they are somewhat responsive and bouncy, but the ‘Soft’ mattresses are not responsive enough for most couples.
Despite the claims, owner experiences show the cocoon chill mattress doesn't regulate temperature better than other all foam models.
Like most memory foam models, Cocoon mattresses produce some off-gassing odors when unpackaged — but the smells will usually dissipate within one or two days.
Cocoon by Sealy mattresses offer little to no edge support, and premature sinkage has been reported along the edges where people tend to sit.
The Cocoon Chill is virtually silent when bearing weight.
What Type of Sleeper Is Best Suited for a Cocoon Mattress?
Based on our customer feedback, the Cocoon Mattress has received the following grades among sleepers of different weights and preferred sleep positions. Please note that these ratings are subjective, and that everyone has varying experiences on different mattresses. Sleeper comfort and spinal support are the most important factors when it comes to selecting a mattress.
As you can see, the Cocoon is a nice choice for side sleepers of all weight categories based on the two firmness options, and performs well for those who sleep on their back. We are weary of recommending the soft option of the Cocoon to larger shoppers, since likely will lack the necessary support, but the firm option of the mattress should be great. While the Phase Change Material is cool to the touch, if the mattress is rightly covered with a protector and fitted sheet, you won’t be able to take full advantage of the ‘cool to the touch’ feel
Our testing process found the Cocoon should also be great for you if…
You’re looking for an affordable memory foam mattress.
You love the feel of memory foam – sleeping more “in” than “on” a bed.
You tend to sleep hot and want to take advantage of phase change material
You sleep with a partner and want to limit the movement you feel on the bed.
What You Need to Know About the Cocoon Mattress
Construction and Firmness
Cocoon by Sealymattresses are available in twodifferent firmness ratings: ‘Soft,’ which corresponds to a 4 (or ‘Medium Soft’) on Tuck’s 1-10 Firmness Scale; and ‘Firm,’ which corresponds to a 6 (or ‘Medium Firm’). The Cocoon Classic and Cocoon Chill share the same construction, but both models have different covers. A full breakdown of mattress layers and measurements is found in the table below.
Support Core Components
Comfort Layer Components
2″ Memory Foam 2″ Polyfoam
Polyester and Cotton
2″ Memory Foam
2″ Memory Foam 2″ Polyfoam
Polyester and Cotton Infused with Phase-change Material (PCM)
2″ Memory Foam
Firmness is rated on a scale of 1 to 10. For more information on how firmness is calculated, please visit our Mattress Firmness page.
Sizing and Pricing
Cocoon Classic Price
Cocoon Chill Price
38W” x 74 1/2L”
Twin Extra Long (XL)
38W” x 79 1/2L”
53W” x 74 1/2L”
60W” x 79 1/2L”
76W” x 79 1/2L”
72W” x 83 1/2L”
Availability: The Cocoon mattress is available on the Cocoon website, as well as Amazon.com. Cocoon does not operate any brick-and-mortar locations.
Trial Period and Guarantee: Sealy offers a 100-night sleep trial for all Cocoon mattresses.
There is no required break-in period, and Sealy will allow customers to return their Cocoon mattress at any point during the 100-night trial.
Customers who choose to return their mattress will receive a full product refund. Sealy will also arrange for the mattress to be picked up and removed at no expense to the customer.
Sealy allows customers to exchange their current Cocoon mattress for a model with a different feel one time during the 100-night trial period. If the customer is still unsatisfied, Sealy will provide a full refund.
Sealy does not restock any used mattresses. Customers who wish to return their mattress may choose to have their mattress donated to charity, recycled, or disposed of at a garbage collection center. Once the mattress has been received by Sealy personnel, the owner will receive a refund within one to two business days.
Customers will not be responsible for repackaging the mattress, and do not need to keep the original boxes.
Warranty: Sealy offers a 10-year limited warranty for all Cocoon mattresses.
Warranty coverage will begin on the original date of purchase.
Sealy will, at their sole discretion, choose to repair or replace mattresses with defects that are ‘due to faulty workmanship or materials’.
A full product refund will be issued for owners of mattresses that have been deemed defective, but the owner will be responsible for all shipping and transportation charges. These costs will never exceed ‘Cocoon by Sealy’s then standard freight charges’.
Cocoon mattresses are designed for support on ‘a firm, solid-surface foundation or adjustable bed base that is structurally capable of supporting the weight’. The warranty will be voided if the owner uses ‘inappropriate foundations, box springs, adjustable bed bases, or bed frames’ with the Cocoon mattress. If a warranty claim is filed, Sealy may request the owner for proof of proper foundational support.
Owners may elect to exchange their defective mattress for a more expensive model. In these cases, the owner will pay the price difference between the original mattress and the upgrade model.
The Cocoon by Sealy warranty will cover the following defects:
Visible indentations in the mattress surface that measure one inch (1″) or deeper that are not caused by misuse or improper foundational support.
Tears in the mattress cover and other product flaws that occur despite proper use.
The warranty will not cover the following:
Visible indentations that do not measure one inch (1″) or deeper; this is considered normal wear and tear.
Normal increases in the softness of mattress materials that do not affect its pressure-relieving abilities.
Repair or replacement requests that occur due to changes in the owner’s comfort preferences.
Burns, cuts, tears, stains, and other types of damage that are the direct result of product misuse or improper foundational support.
This warranty is exclusively offered to original purchasers who buy their Cocoon mattress directly from Sealy or an authorized retailer. Warranty coverage will not extend to anyone who buys or acquires their mattress from the original owner or a non-authorized retailer.
How is the mattress shipped?Cocoon mattresses are compressed, vacuum sealed, and boxed for shipping
Where do they ship?Cocoon By Sealy ships mattresses anywhere in the United States.
Full shipping details
Delivery Policy: The delivery policy for Cocoon by Sealy mattresses is as follows:
Cocoon mattress deliveries are provided by UPS couriers. Most customers will receive their mattress within five to seven business days after they have placed their order.
UPS couriers provide front door deliveries for all mattresses. Customers do not need to be at home to receive and sign for their mattress. Those with ‘special delivery needs‘ should contact Sealy’s Customer Care department.
Customers who need to change the shipping address on their order should call Sealy immediately. In some cases, the company will be able to change the address — but this may not be possible depending on how far the mattress has shipped. UPS cannot change the address without receiving an official request from Sealy.
Old Mattress Removal: Because they utilize UPS couriers for all deliveries, Sealy does not offer old mattress removal services.
6 out of 10 owner experiences show customers have had a positive experience with Cocoon, irrespective of whether or not they liked their mattress.
The Sealy Corporation was founded in 1881. Cocoon by Sealy launched in March 2016.
Cocoon does not operate any brick-and-mortar locations.
As any consumer does with a product they’re considering, our mattress assessments naturally involve comparing them with other similar products. Be it composition, firmness, or price, we think it’s important to see how the Cocoon stacks up to other beds.
The Cocoon is priced very affordably relative to other mattresses of its quality in the foam category. The use of the phase change material on the cover of the Chill model gives the mattress a small leg up to other brands in the same category. Check out our selections below if you’d like to see a few comparable mattresses.