What you get with Cocoon by Sealy

The Cocoon by Sealy mattress is a 100% memory foam mattress designed and manufactured by Sealy, a giant in the mattress industry. Sealy produces a wide variety of mattresses and distributes worldwide. The Cocoon brand is a bed-in-box offering by Sealy that ships directly to the consumer.

Two Cocoon models are available: the Cocoon Classic and the Cocoon Chill. The Cocoon Chill features a different mattress cover that is designed to sleep cooler. The firmness of each model is customizable.

Here are some of the key characteristics of the Sealy Cocoon mattress:  

  • Customizable comfort: There are two firmness options to choose from in each Cocoon by Sealy mattress. The firmness options include “soft,” which sinks and form-fits to the body, and “firm,” which keeps a sleeper “on” the mattress as opposed to “in” the mattress.
  • Supportive: 100% memory foam construction makes the Cocoon mattress highly supportive to the back, neck, and joints. The contour support of this mattress is ideal for healthy spinal alignment (poor spinal alignment at night is a major cause of discomfort during sleep as well as aches and pains during the day).
  • Cool: The Cocoon by Sealy features state-of-the-art cooling technology in its Chill mattress. The Cocoon Chill cover contains a phase changing material that regulates temperature by absorbing heat and expelling it away from the body. The Cocoon Classic cover is also highly breathable.
  • Customer service: Sealy is a major company and offers customer service elements that smaller mattress producers cannot. This includes a 24/7 helpline, free 2-day shipping to most of the USA, and a 100-day sleep trial with the possibility to exchange models.

Some possible weaknesses have been identified in the Cocoon by Sealy mattress:

  • May be too firm for some: The “soft” version of the mattress rates in the medium-firm range on the firmness scale, while the “firm” option hits the extremely firm range. Side sleepers may not be satisfied with this mattress.
  • Offgassing odor: Some sleepers have complained of an unpleasant odor caused by offgassing from chemicals used in the memory foam. This effect can last for a few days.

Price (Queen): $799 (Classic)/ $949 (Chill)
Type: Memory foam
Sleep trial: 100 nights
Warranty: 10 years
Shipping: Free shipping
Manufactured in: USA

About Cocoon by Sealy

Brand history

Sealy is one of the world’s foremost and best-known mattress makers. Established in 1881 in Texas, Sealy changed the 19th-century mattress industry by introducing cotton as a mattress filling. Since then, Sealy has produced mattresses of all types. They entered the memory foam market with their Conform Line of 100% memory foam mattresses available exclusively at brick-and-mortar shops.

The Sealy Cocoon mattress line was established in 2016 as a direct-to-consumer memory foam mattress option. Two years of research and development went into the Cocoon mattress before its release, and over 100 prototypes were tested. When the Cocoon line launched, only the Cocoon Classic was available. The Cocoon Chill was introduced a short time later. The Cocoon by Sealy mattress is available from the Cocoon website.

Brand reputation

Sealy has a good reputation among mattress brands and among brands in general. It is one of the most widely recognizable brands in the world. The Better Business Bureau (BBB) has given the Tempur Sealy Corporation a rating of “A+.” This is the highest rating possible.

Customer reviews for the Cocoon by Sealy mattress are generally favorable. The customer reviews on the Cocoon website average to 4.7 of 5 stars after over 2000 reviews. The Cocoon Mattress has an average rating of 3.4 out of 5 stars on Amazon. Nearly 75% of these reviewers gave the Cocoon either 4 or 5 stars, but about 16% gave the mattress just 1 star.

Customer feedback


  • Affordable
  • Supportive
  • Customizable
  • Cool
  • 100-day sleep trial
  • 10-year warranty
  • Good customer service


  • May be too firm for some
  • Offgassing odor
  • The Cocoon Classic model may sleep hot

A look at the Cocoon by Sealy mattress

The Cocoon mattress is a 10” 100% memory foam mattress comprised of 2-3 layers of foam and a stretch-knit mattress cover. The number of layers depends on the chosen firmness level, not the chosen model (Classic or Chill). The mattress cover is the distinguishing factor between the Cocoon Classic and Cocoon Chill mattress models.

Cocoon by Sealy (Soft)

  • 2” Perfect Fit memory foam: This comfort layer is made from high-quality memory foam. It responds to the weight of a sleeper and hugs the contours of the body to provide soft support.
  • 2” Cocoon Soft memory foam: This layer is present only in the Cocoon “Soft” option. It is a layer of transition foam that is denser than the comfort layer, but soft enough to respond to weight and sink in. With this layer present, a sleeper will sink deeper into the mattress.
  • 6” Essential Support foam: The base layer of the Cocoon mattress is made from extra-dense memory foam. It is meant to provide a solid support to the mattress and to promote healthy spinal alignment. This foam is guaranteed not to sag or buckle for 10 years.

Cocoon by Sealy (Firm)

  • 2” Perfect Fit memory foam: This layer is the same as the comfort layer from the soft option, though it will feel firmer because it will not have the transition layer to sink into.
  • 8” Essential Support foam: The base layer of the Cocoon mattress is made from extra-dense memory foam. This layer is the same as the base layer in the soft option, but it is 2” larger. The sleeper’s body will come into contact with this base layer in the firm option and prevent it from sinking into the mattress.

The remaining feature of the Cocoon by Sealy is its cover. This is the sole distinguishing factor between the Cocoon Classic model and the Cocoon Chill model, although it creates a large difference in price between the models ($150).

The Cocoon Classic comes with a Premium Fabric cover. This stretch-knit, cotton and polyester cover is elastic and will not bunch or wrinkle. It is made of breathable materials, but it is not as effective at cooling as the Chill cover.

The Cocoon Chill cover is also made of stretch-knit cotton and polyester, but it contains a phase change material that absorbs heat and dispels it away from the body. This material is very effective at regulating temperature and staying cool for the first 30 minutes after a sleeper enters bed. After that, it will eventually reach an equilibrium with the body’s temperature, and a sleeper may need to change position to find the cool-to-the-touch feel.

The Cocoon by Sealy mattress was designed and is assembled in the USA.

Cocoon by Sealy costs and guarantees


Model Size Price Weight (lbs)
Cocoon Classic Twin $399 39.5
Cocoon Classic Twin XL $449 42.1
Cocoon Classic Full $649 55.7
Cocoon Classic Queen $799 64.4
Cocoon Classic King $999 82.6
Cocoon Classic California King $999 82.5


Model Size Price Weight (lbs)
Cocoon Chill Twin $549 39.5
Cocoon Chill Twin XL $599 42.1
Cocoon Chill Full $799 55.7
Cocoon Chill Queen $949 64.4
Cocoon Chill King $1149 82.6
Cocoon Chill California King $1149 82.5

Sleep trial

The Sealy Cocoon mattress comes with a 100-day sleep trial. If at any point during this trial the customer decides the mattress is unsatisfactory, Sealy will arrange for the mattress to be picked up and donated to a charitable organization. A full refund will be issued to the customer within 1-2 business days.

A sleeper will also have the option to exchange their mattress at no cost within the first 100 days. If a sleeper decides they want to change to a different firmness option, Sealy will assist in the exchange. There is a limit to only one exchange. The Cocoon mattress is still eligible for a refund after an exchange as long as the 100-day trial hasn’t finished.


The Cocoon by Sealy ships for free in a 15” X 15” X 44” box. The mattress is not made to order, so it should arrive no more than four business days after the order has been placed. Most mattresses arrive in two days.

The mattress will arrive compressed and rolled. The box is easy to carry and unpack and should be manageable even for one person. To unpack the mattress, carefully open the box and unroll the compressed mattress. Lay the mattress where you’d like it to stay, and open the vacuum sealed plastic. The mattress should decompress completely in an hour. Be careful not to damage the mattress if a sharp object is used to open the packaging.


The Cocoon mattress comes with a limited 10-year warranty. This covers manufacturer’s defects and sinkage or depressions in the foam of 1” or more. It also covers damage to the mattress cover. The warranty will be voided if liquid damages the mattress or if a foundation deemed inadequate by the seller is used to support the mattress.


Sealy offers financing on the Cocoon by Sealy, which allows customers to pay for the product over 12 months. Customers can apply for financing at check-out on the Cocoon by Sealy website. Orders over $500 are eligible for 0% APR.

How the Cocoon by Sealy mattress performs

The Cocoon by Sealy mattress has received favorable reviews from customers based on its performance and durability. Great customer service makes this mattress easy to order, exchange, and return. The dense memory foam is durable and remains supportive over time, and the Cocoon Chill cover uses technology not found in other mattresses to provide a cool night’s sleep. While sleepers have enjoyed the benefits of this mattress, some have found a number of faults. Let’s take a look at how the Cocoon by Sealy performs.

Motion isolation

The Cocoon by Sealy isolates motion moderately well. This means that a sleeper is unlikely to be disturbed by the tossing and turning of another sleeper, but may feel something when a partner gets in and out of bed. Memory foam mattresses are quite good at isolating motion, as they are made of dense foam that doesn’t transfer motion. Firmer mattresses are better at isolating motion than soft mattresses, so the firm Cocoon option has less bounce and more motion isolation than the soft Cocoon option. The soft option, however, is still a medium-firm mattress, so customers can expect decent motion isolation.

Edge support

Edge support describes how much the edges of a mattress buckle or sink when pressure is applied. Memory foam mattresses tend to compress a lot on the edges, but the Cocoon by Sealy performs better than most. Sleeping near the edge provides uniform support with minimal sinkage. It feels similar to sleeping in the center of the mattress. Sitting on the edge of the Cocoon mattress causes some compression (more significant in the soft model), but the edge still maintains its integrity quite well.


Sealy has the resources and technology to rigorously test their mattresses. The Cocoon mattress underwent many durability tests to make sure that the materials used would last at least 10 years (the length of the warranty). The memory foam used in the Cocoon by Sealy mattress is very dense and built to last. Most memory foam mattresses are built to sustain sleepers who weigh less than 350 lbs., but the Cocoon can hold up to 500 lbs comfortably without straining the foam.


The Cocoon by Sealy comes in two firmness options: soft and firm. The soft option rates at a 6 on the firmness scale, which indicates a medium-firm mattress. A rating of 6 is an ideal firmness level for all sleeper types, though the name of “soft” can be misleading. Some customers who assumed they were getting a truly soft memory foam mattress were disappointed, and understandably so. The soft option doesn’t fall under the soft category on the firmness scale, and it might be too firm for some side sleepers.

The Cocoon firm option is a lot firmer than the soft, with a rating of 8 on the firmness scale. This is firmer than most other memory foam mattresses and will likely feel hard to most sleepers. Alternatively, sleepers looking for an extra-firm memory foam mattress will be happy to have found one. The firm option is ideal for heavier stomach sleepers.


The difference between the two Cocoon by Sealy models (Cocoon Classic and Cocoon Chill) lies in their ability to regulate temperature. The Classic model is made from high-quality memory foam, but it doesn’t contain ventilated foams, cooling gel foam, or special fabrics like similar mattresses. This can cause it to sleep hot.

The Cocoon Chill was created to remedy this problem. The Chill cover is made with a phase change material that is very effective at controlling temperature and keeping the body cool. This effect is reported to last 15-30 minutes before the fabric reaches equilibrium with the body. Sleepers who need a lot of time to fall asleep or who read in bed may find themselves searching for a cool spot, but those who fall asleep quickly will enjoy an especially cool and comfortable sleep surface.


One issue that the Cocoon mattress has is with offgassing. This effect is caused by a chemical odor which is released by settling memory foam when it’s taken out of its packaging. The smell is harmless and will dissipate after a few days, but some find it to be unpleasant. Several customer reviews have complained of a strong offgassing smell, while others have mentioned only a slight odor.


The Cocoon mattress is a 100% memory foam mattress with high motion isolation. This is a benefit to many, but it also means there is a low degree of bounce and mobility, which is not ideal for sex. The surface of the Cocoon firm option feels quite hard, and may not be comfortable for active couples. The Cocoon Classic also has some complaints of retaining heat, which may not be pleasant for sexual activity. The soft option of the Cocoon Chill mattress is the best of the Cocoon line for sex.

How to take care of your Cocoon by Sealy mattress

Memory foam is naturally hypoallergenic, so dust mites and other allergens won’t invade the Cocoon mattress. The biggest risk to foam mattresses is liquids. Spills can cause the foam to warp and may void the warranty. Make sure to keep food and liquid far from the mattress.

The Cocoon by Sealy is not washable, and the cover is not meant to be removed. If a stain sets in, it should be spot washed. Dampen a towel with warm water and dab the stain. It is ok to use a delicate detergent, but make sure the towel is not saturated. Using too much water may damage the mattress.

The Cocoon mattress is made up of different foam layers, so it can’t be flipped. It is recommended instead to rotate the mattress 180 degrees every 3-6 months. Doing this will help to uniformly distribute weight on the mattress and lengthen its life.

Connect with Cocoon by Sealy

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