Cocoon by Sealy Mattress Review

If you’re looking for a mattress that delivers cushiony comfort, exceptional support and some of the best temperature regulation available, look no further than the Cocoon.

Developed by world-renowned mattress brand Sealy, the Cocoon is available in both a memory foam and a hybrid model. Both offer a superior sleep experience thanks to their premium materials, impeccable construction and a proprietary cooling cover that always keeps the temperature just right.

And, with a 100-night free trial, a 10-year warranty, and convenient delivery right to your door, the Cocoon is a no-risk, hassle-free fast pass to your most blissful night of sleep yet.

Here’s everything you need to know about the Cocoon mattress by Sealy:

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Firmness: Medium – perfect for any type of sleeper
Sizes: Twin, Twin XL, Full, Queen, King, Cal King
Materials: Perfect fit memory foam, advanced cooling cover
Design: 10” all memory foam with cooling cover featuring proprietary phase change material to dissipate heat
Trial Period: 100-night trial
Warranty: 10-year limited warranty
Shipping: Fast, free shipping to your door via UPS

Cocoon by Sealy Mattress Details

With equal emphasis on comfort, support and temperature regulation, the Cocoon mattress delivers a dreamy sleep experience for every kind of sleeper. 

Cocoon by Sealy Mattress Construction & Mattress Type

The Cocoon is available in two models, an all-memory foam and a hybrid.

Cocoon by Sealy 10” Medium Memory Foam Mattress

The memory foam model is a 10-inch mattress made of Sealy’s Perfect Fit® memory foam, which cradles the contours of your body, providing a soft and supportive feel, and superior motion isolation. Think of it as the mattress that hugs you back.

Cocoon by Sealy 12” Hybrid Memory Foam Mattress

The hybrid option is a 12-inch mattress that combines conforming memory foam with fabric-encased coils, giving it a little extra bounce. Featuring an exclusive Active Support Technology®, the hybrid mattress delivers more targeted support for your unique body size, shape and sleep position. It also includes a reinforced, steel perimeter, which makes getting in and out of the bed easier.

Whichever model you go with, you can be sure the temperature will always be just right—both come with a cooling cover designed to absorb and dissipate heat as you sleep. 


All Cocoon mattresses are considered medium firm—on a scale of one to 10, with one being the softest and 10 being the firmest, Sealy ranks the Cocoon a solid six.

Sleep Types & Ages Suited For

The firmness, construction and cushion of the Cocoon mattresses make them ideal for side sleepers, back sleepers and stomach sleepers alike. The mattresses are designed to respond to the curvature of your unique body, so no matter what your sleep position preference is, you will feel both supported and cradled.

Cocoon by Sealy Mattress Performance

There’s a lot of thoughtful engineering and precise construction that goes into the Cocoon. This means you can count on getting a top performing mattress and a superior sleep experience. Here’s more detail on how the Cocoon performs:

Motion Isolation

If you sleep with a partner, you know just how disruptive it can be when they move during the night. One of the things that you’ll notice about the Cocoon by Sealy is that it does an excellent job at isolating motion. The conforming memory foam adapts and responds to the contours of your unique shape for a soft and supportive feel and premium motion cancellation. With the hybrid model, each fabric-encased coil moves independently, which means you get targeted support and reduced motion transfer. 

So if your partner is an active sleeper or gets up frequently during the night, you can rest assured you’ll happily remain in dreamland.

Pressure Relief

The Cocoon mattresses feature Sealy’s proprietary Perfect Fit Memory Foam, which adapts and responds to your body shape so you get the right amount of cushion and support in all the right places. Both models offer supportive spinal alignment and reduced pressure on your joints.

Temperature Control

This is another area in which the Cocoon shines. The mattress contains a stretch-knit cover that’s infused with a proprietary Phase Change Material designed to absorb and dissipate heat, so you’ll stay cool and comfortable all night long.

Edge Support

Both the memory foam and the hybrid models contain foam that responds and reacts to your body. So whether you sleep on the edge or in the middle, you’ll feel very little difference in support. 

The hybrid model takes edge reinforcement even further—it includes Sealy’s proprietary Quantum Edge technology, which essentially is a reinforced, steel perimeter engineered to provide consistent support. 

Of course, as with any mattress, if you sit directly on the edge of the bed, you’ll notice more of a dip since all your body weight is concentrated in one spot as opposed to being equally distributed like it is when you are lying down. 

Ease of Movement

The Cocoon mattresses have been engineered to provide the right amount of cushion and support without prohibiting movement. So even the most mobile sleepers will move freely. 


The average lifespan of a high quality mattress is about eight to ten years. The Cocoon is built to last at least that long—Sealy tested this mattress with over 100,000 cycles of their “Rollator Surface Fatigue” and “Mattress Durability Impact Tests,” which use 225 pounds of force over and over—the equivalent of 10 years of regular use, to ensure the Cocoon lives up to their standards and guarantee.

Sealy stands behind the Cocoon with a 10-year warranty. This means that if your Cocoon has a defect covered under the warranty anytime within the first 10 years after you purchased it, the company will replace or repair it free of charge.


Innerspring and hybrid mattresses tend to be the noise-makers. That’s because they contain metal coils—as the coils wear out, they can start rubbing together, creating a squeaky noise.

Since the Cocoon memory foam model does not contain any metal coils, noise is not an issue with this mattress. As for the hybrid Cocoon, its coils are encased in fabric, which means they have extra padding to reduce friction and noise. Consider this a squeak-free mattress.


The Cocoon by Sealy is also a great mattress for sex. This is because it’s easy to move around on and provides good support. The hybrid model has a little more “give” than the memory foam option, and some may appreciate the extra bounce it provides.


“Off-gassing” refers to the “new mattress smell” that often occurs when you remove a mattress from its packaging for the first time. Most experts agree that off-gassing, while somewhat unpleasant, doesn’t pose a health risk. 

Most of the Sealy products no longer experience off-gassing and, if they do, it’s typically faded by the time they make their way to buyers’ doors. However, in cases of exceptionally short delivery cycles, the smell may still be noticeable. If you do experience off-gassing with your mattress, the smell should dissipate within one week.

How does Cocoon by Sealy Compare to Other Top Mattress Brands?

With so many mattresses to choose from, selecting your best fit can be rather overwhelming. Let us help take some of the stress out of the shopping process with some insight into how the Cocoon compares to some of the top brands. 

Please note that for the sake of these comparisons, we will focus on the memory foam models.

Cocoon by Sealy vs Casper Mattress

Casper’s memory foam mattress is extremely similar to the Cocoon. Like the Cocoon, it is constructed of premium foam that conforms to your body and relieves pressure. The Casper mattress also includes special cooling technology designed to keep sleepers cool. Casper even offers free shipping, a 100-night trial and a 10-year warranty just like Sealy.

The only real difference between the two brands’ memory foam mattresses is that Casper includes zoned support—they divide the mattress into three ergonomic zones that help keep your spine aligned as you snooze. But that comes at a price—at the time of this review, the Casper mattress will cost you over $500 more than the Cocoon.

Cocoon by Sealy vs Purple Mattress

Purple does not offer a memory foam mattress. Instead, their mattresses are constructed using a gel-like grid designed to cradle your pressure points, provide full-body support and optimize airflow. The Purple is slightly firmer than the Cocoon—it’s a medium-firm mattress.

Like the Cocoon, the Purple mattress comes with a 100-night free trial, a 10-year warranty and free shipping. The Purple is typically more expensive than the Cocoon—at the time of this review, the Cocoon was a few hundred less.

Cocoon by Sealy vs Nectar Mattress

The Nectar and Cocoon memory foam mattresses are comparably priced. Both  include a cooling cover with proprietary cooling technology.

The Nectar offers a longer home trial—365 nights compared to the Cocoon’s 100-night, and a lifetime warranty (Cocoon offers a 10-year warranty).

How to Get the Cocoon by Sealy Mattress

The Cocoon mattress is only sold by Sealy. You can order it online through their website—it’s a very easy, streamlined process, and shipping is free.

Once you place your order, it can take a few business days to process. Once it ships, you’ll receive an email with tracking information. The orders are sent from Sealy’s Belmont, Mississippi, facility via UPS Ground, and typically arrive within five to seven days.

When your Cocoon arrives at your door, it will be compressed in a plastic sleeve and rolled into an easy-to-move box, which also includes very simple unpacking instructions.

If the thought of buying a mattress without testing it out makes you nervous, don’t worry: Sealy offers a 100-night trial period to ensure you are satisfied with your purchase. This means that if at any time during the first 100 days of your purchase, you are unsatisfied with your mattress, you can return it for a full refund—Sealy will handle pick up, so it’s completely hassle-free.

Cocoon by Sealy Promo Code, Discounts and Sales

Sealy often offers discounts on the Cocoon mattress. The company also frequently includes free accessories like pillows. Keep an eye out during the holidays for additional sales.

Cocoon by Sealy Company Information

The Cocoon mattress is made by Sealy, one of the leading mattress and bedding product manufacturers in the United States. 

Sealy has been in business for well over 100 years—the company was launched in 1881 by Daniel Haynes, a cotton gin builder, who began by making cotton-filled mattresses for friends. In 1889, Haynes invented a machine that compressed cotton. Building upon the machine’s success, he licensed it to others to make mattresses with the name “mattresses from Sealy.”

As part of their development of the Cocoon, the company designed and tested more than 100 prototypes in their flagship testing center in North Carolina. The mattresses were tested for durability, comfort life, safety/flammability, and the effects of packaging, shipping and handling.

Cocoon by Sealy Review: The Bottom Line

The Cocoon by Sealy is an excellent mattress for people who are looking for a supportive and comfortable option that delivers a cool sleep experience. The mattress is very easy to set up and comes with a 100-night sleep trial and 10-year warranty. If you’re interested in getting the Cocoon by Sealy, you can do so by visiting their website.

Cocoon by Sealy FAQ

Is Cocoon by Sealy a good mattress?

Yes, the Cocoon by Sealy is a good mattress for shoppers who are looking for an affordable option that still provides plenty of comfort and support. This mattress is made with high-quality materials and innovative technology to provide optimal sleep. Plus, the company offers a 100-night trial period so you can make sure the mattress is right for you.

Where to buy the Cocoon by Sealy mattress?

Cocoon is only sold directly from Sealy. You can order it online via their website. The Cocoon ships for free and comes with a 100-night trial period—if at any time during the first 100 days you become unsatisfied with your purchase, you can return it for a full refund. Sealy will handle pick up and delivery.

Where is Cocoon by Sealy made?

Cocoon by Sealy is made in the U.S., and every mattress undergoes rigorous testing to ensure the quality is as promised. Currently, all of the mattresses ship from the company’s Mississippi facility.

Does Cocoon by Sealy have fiberglass?

There is no fiberglass contained in the mattress or cover, but there is a netting that contains some fiberglass. The netting is composed of 38 percent modacrylic, 37 percent glass fiber and 25 percent cotton.


The Consumer Rating Difference

Behind Our Best Mattress Ratings

We make finding the best mattress easy with expert reviews and rankings. Here’s the methodology behind our ratings:


Exhaustive Research

From the optimal firmness for side sleepers to the most effective cooling technology, we dive deep into the data to determine the best option for every kind of sleeper.

Mattress Reviews

No one knows the pros and cons of a mattress like the people sleeping on it. We read thousands of customer reviews to determine which mattresses customers like best.

Personal Experience

Our experts personally test out each top mattress, keeping in mind the features consumers care about most—like materials, design, cooling and firmness.

Side-by-Side Comparisons

From Saatva to DreamCloud, Nectar to Casper, we compare the best mattresses across a number of key criteria to determine how each one ranks.