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Cocoon Mattress Review

Cocoon Mattress Review

Welcome to our Cocoon by Sealy review where we discuss the pros and cons of Chill (and Classic) memory foam mattress

Last Updated: September 23, 2020

Matt Ross

The Sealy Cocoon Chill mattress is one of the best cooling mattresses under $1,500. It’s great for people who enjoy the feel of a memory foam mattress, but tend to sleep hot. This bed will be supportive and pressure relieving, which means it should be comfortable for people regardless of their preferred sleep style, but should be especially comfortable for back and stomach sleepers.

Who Is This Best For?

If you like memory foam

Hot sleepers on a limited budget

People that like firmer beds

Who Won’t Love It?

If you wanted a soft mattress

Heavier folks, and those that prefer innerspring beds

Cocoon By Sealy Chill Overview

Use the links below to quickly jump to any section of this Cocoon mattress review in order

Jump-To Links For This Mattress Review:

Here’s our Cocoon mattress review video — we make sure to discuss both the Classic and Chill models.

Honest YouTube Cocoon Review

If you’re still searching for answers, keep reading. We discuss everything from design and feel to firmness and sleeping positions.

Cocoon Chill vs Cocoon Classic Mattress

We mentioned that the Chill mattress is available in a soft and firm model, but there’s a Classic model as well. The big difference between the two is that the Chill has the phase change cover and the Classic does not.

Usually, the Classic model is much less expensive than the Chill; however, Sealy’s recent July 2020 sale brought the Chill model’s pricing down even lower than the Classic.

cocoon mattress review by sealy chill vs classic
Cocoon Chill and Classic looks exactly alike

One reason you might get the Classic over the Chill is if you don’t have a preference about the cooling cover. The only thing that you should be aware of is that the Classic will then sleep warmer than the Chill. If you have temperature concerns, you might want to play it safe with Cocoon Chill — especially because you can return it within the trial period.

Cocoon Chill Mattress Pricing

The Cocoon Chill mattress is one of the most affordable cooling mattresses on the market. It’s priced similarly to Casper, Leesa and Bear. The pricing breakdown is as follows for the Chill model:

SizePrice (MSRP)
Twin XL$650
King / Cal King$1,150

Is There A Cocoon Mattress Coupon Code?

As you might imagine, Sealy offers steep discounts during major holidays. Typically, it will throw in a pillow or some small sleep accessory with your mattress purchase as well. You can also check out our Mattress Deals & Coupons page to see what promotions we’ve spotted recently.

Cocoon Chill Design And Construction

Both Cocoon mattresses have a 10” height profile and are constructed with multiple layers of foam. The Chill model is cool to the touch, thanks to its phase change cooling cover.

The construction of the mattress will depend on whether you get the soft or firm model. The Soft model has three layers, while the Firm model has only two.

The base layer is dense polyurethane foam. You’ll see this on nearly all foam mattresses. It’s responsive, but given how dense it is, the foam is not pressure relieving, nor should it be since it’s the foundation.

Soft Cocoon mattress construction interior
Under the hood of the Cocoon Soft mattress

Soft Foam Model

If you go with the soft model, you will get a transition layer, which, as you’d expect, helps soften up the mattress. What Sealy does is reduce the thickness of the base layer to allow for a transition layer, which is a softer poly foam. The less you feel of the dense, firm base layer, the softer the bed will feel. The image above shows you the soft model where you can see the three-layer design. There are plenty of foam mattresses that are built like this.

Firm Foam Model

If you get the firm model, you lose the transition layer so that you feel more of that dense support foam; however, the thickness of the mattress remains the same.

Construction of the cocoon chill mattress
Inside look at the Firm version of the Cocoon mattress

Irrespective of which model you choose, the top layer is made with memory foam. As is typical of memory foam, this layer will adapt to your body size, shape, and sleep position.

Cocoon Mattress Responsiveness

As a side note, it makes a lot of sense that Sealy made a memory foam bed-in-a-box mattress since the parent company for Sealy, TSI International Group, also owns Tempur-Pedic — the brand that first popularized memory foam mattresses.

People who are concerned about sleeping on toxic materials will be relieved to know that the Cocoon mattress is CertiPUR-US certified. CertiPUR-US is a nonprofit organization that conducts rigorous safety inspections. This certifies that the bed is safe to keep in your home and sleep on, for both adults and children.

Cocoons Chill Cooling Mattress Cover

The mattress cover is infused with Sealy’s proprietary Phase Change Material (PCM) that absorbs and disperses body heat. In fact, this cover makes the Cocoon Chill mattress cool to the touch (much like its name suggests!). Although many mattress companies claim to use cooling technologies that will prevent the bed from sleeping warm, we haven’t found them to always be effective. However, the Phase Change Material on Cocoon Chill helps provide a fairly cool sleeping surface.

cocoon mattress review chill bed by sealy cooling cover
Cooling cover on the Cocoon Chill mattress

While the Cocoon Chill mattress cover is technically removable, it is not machine washable. To spot clean, gently dab at it with a cloth that has been dampened with water and mild detergent. Gently scrub the spill until the spot has cleared, and let the mattress air dry.

If you think you might make a mess, look into a mattress protector. A mattress protector will help prevent stains from permeating the mattress. Sealy says you can use a mattress protector with Cocoon Chill, but we think having a cover on top of the bed may prevent it from feeling as cool to the touch. It also may prevent the mattress from cooling you down as effectively during the night.

If you are concerned about the Cocoon bed feeling like new for many years to come, we recommend rotating the bed 180° periodically. Most mattress manufacturers recommend doing this every six months to help prevent any lasting indentations in the bed. However, this mattress is not reversible, meaning you should never try to flip it to the other side as its bottom is not meant for sleeping.

Cocoon Bed Firmness and Feel

Cocoon mattresses have a typical memory foam feel, so they will mold to your body’s shape and sleeping position. However, our Cocoon review revealed that this bed feels denser than most memory foam beds. You aren’t going to sink into the bed as deeply as you would on a traditional memory foam mattress. Cocoon feels like a budget version of a Tempur-Pedic mattress.

Unlike most memory foam beds (which tend to retain heat), the cooling compound infused in the Cocoon Chill cover allows this bed to sleep comfortably cool. We’ve joked that the cover is so cold it almost feels wet — and that feeling didn’t dissipate even after months of use.

cocoon chill mattress firmness

Sealy offers Cocoon Chill and Classic in two firmness options. The two options feel fairly similar, but Sealy’s most popular option is the Cocoon Soft, which is less dense and allows you to sink into the bed more while sleeping. The difference in firmness is subtle, but the soft model is slightly softer than the firm option. Our Cocoon mattress review led us to believe that both models are closer to a medium-firm.

If you aren’t familiar with memory foam, here’s a quick overview: It tends to be fantastic for pressure relief, but is also slower to respond to pressure. Memory foam will feel a little firmer when you first lay down, but it softens as heat and pressure are applied. When you switch positions, there is resistance because the bed remembers your shape. So, if you shift positions while sleeping, there may be a slight indentation where you were before. That said, at no point should you feel trapped in a Cocoon bed.

So, if you shift positions while sleeping, there may be a slight indentation where you were before. That said, at no point should you feel trapped in a Cocoon bed.

We think the memory foam could be a double-edged sword for combination sleepers. If you want to be able to freely rotate positions, you might not love it because of the resistance. However, you might also appreciate the memory foam because it creates a little nook or indentation that provides a near-perfect fit for your body. As such, you might not feel as inclined to want to switch positions. It’s almost analogous to a weighted blanket or cuddling — the memory foam can make you feel secure.

Ideal Sleeping Positions On Cocoon Beds

Cocoon beds are made with a dense memory foam that provides enough support for back and stomach sleepers. Back and stomach sleepers typically are attracted to firmer mattresses so their spine will stay aligned during the night.

cocoon mattress review by sealy back and stomach sleepers
Good option for stomach sleepers

As we covered in the firmness section of the Cocoon review, the Chill model is a firmer mattress, regardless of whether you select the soft or firm option. We think stomach and back sleepers will like this mattress.

While we think some strict side sleepers may be comfortable on this bed, we don’t think it provides enough pressure relief to make it a good bed for all side sleepers. If you are a heavier individual, you might be fine, but it isn’t a great bed for petite side sleepers.

This is a good time to introduce the fact that softness and firmness are moving targets and change from person to person. There’s a chance that you think the soft model provides perfect pressure relief, but there’s also the chance that you think the opposite. It all boils down to your personal preference and how your body responds to the bed itself.

As for combination sleepers, we do think Cocoon will be a nice mattress, as long as you’re fine with that dense memory foam feel and you don’t favor your side.

Is It Possible For Heavy People To Sleep On This Bed?

Cocoon beds are supportive enough to work for all body types, including heavier individuals, although we’d still encourage you to first look into a hybrid or spring mattress if you’re heavier than 250 pounds. The memory foam is dense enough that heavy sleepers should find it to be durable and supportive for a variety of sleeping positions. But again, it might not be your favorite bed for the long-term given that it’s still made entirely of foam.

Will Couples Like The Cocoon Mattress?

If you like to share a bed with your better half, we think Cocoon beds are a good choice, so long as you agree on the aforementioned qualities such as firmness and feel. The cooling properties of the cover help make sure that even while sleeping next to someone who is exuding body heat, you will be able to sleep cool and comfortable.

Furthermore, Cocoon has a thick layer of memory foam on top. Memory foam is known for isolating motion well, which is helpful if your partner tends to toss and turn at night. Motion isolation means that the bed does a good job of keeping movement from traveling onto your side of the bed when the other person moves.

cocoon by sealy review edge support
Good edge support for an all-foam mattress

This bed also has good edge support, which means that if you find yourself on the edge of the bed, you won’t feel as though you are about to fall off. This is very helpful if you are in a relationship and aren’t planning to buy a king size bed.

Cocoon Mattress Review Verdict

The Cocoon Chill mattress is an affordable, cool mattress that is great for people who sleep hot or live in a hot climate. It has a dense memory foam feel, yet despite being a memory foam mattress, it does sleep cool. Cocoon Chill comes in two firmness options, but there is only a slight difference between the Soft and Firm versions.

Other Sealy Mattress Reviews

Cocoon Ratings

  • Better Business Bureau (BBB) Rating: The BBB gives Tempur Sealy International Inc. an A- rating.
  • Amazon Reviews: Amazon reviewers give the Sealy Cocoon Chill mattress a 3.5-star rating, citing it for its superior sleep quality and comfort.

Sealy Company Info

Cocoon By Sealy Contact Information

  • Phone Number: (888) 818-4039
  • Email: support@cocoonbyseal.com
  • Website

Find Cocoon By Sealy On Social Media

Review team

  • JD
    JD Christison

    Combo Sleeper

  • kenzie
    McKenzie Dillon

    Combo Sleeper

  • Tharon
    Tharon Green

    Stomach Sleeper

  • Owen Poole

    Side Sleeper

Cocoon By Sealy Consumer-Friendly Policies

Sealy has several policies to help make your mattress purchasing experience easier.

Free Trial Period

Cocoon comes with a standard 100-night free trial. If you don’t find the mattress to be as comfortable as you’d hoped once it arrives, Sealy will allow you to exchange the mattress one time at any point during the 100-night free trial. Specifically, you can swap out the Cocoon Soft version for the Cocoon Firm. You can also get a 100 percent refund if you’d like within that 100-night trial period.

Free Shipping

Sealy also offers free shipping on the Cocoon Chill and Classic. Once you order the bed, it will be shipped to you via UPS ground for free. Sealy will send you a tracking number, so you can watch your new mattress’ journey to your bedroom. Then you just have to unbox the bed, watch the mattress inflate and enjoy.

Cocoon comes with UPS Standard Shipping (which means the bed should arrive in 5-7 days). However, Sealy offers Saturday delivery, UPS Next Day and UPS Second Day delivery, depending on where you live. Sealy does not offer international delivery as of this post. If you live outside the United States, Sealy says to send it a note about where to send your mattress.

Sealy’s Return Policy

If you decide your mattress is not the right fit for you, call Sealy at (888) 818-4039 or email support@cocoonbysealy.com. If it is during the 100-night free trial, you can return or exchange the mattress for free. If that’s the case, Sealy will arrange for pickup. This may include donating, recycling, or disposing of the mattress. Once the return is confirmed, Sealy will issue a refund to your credit card within 1-2 business days.

Limited Warranty

If you are concerned about your mattress lasting for a long time, Sealy offers a 10-year limited warranty on Cocoon Chill and Classic mattresses. This means that within 10 years from your purchase date, Sealy will replace or repair any defect that is covered under warranty. Defects that fall under Sealy’s warranty include any visible indentations greater than 1” and torn mattress covers. Read the warranty details on the Cocoon by Sealy website because there are a lot of warranty specifications.


How did the Slumber Yard get this mattress?

We were sent the Cocoon Chill mattress by Sealy; however, the company did not pay us to say positive or negative things about this bed. We review products independently.

Is the Cocoon Chill available in retail stores?

No, Cocoon Chill is only sold directly from Sealy, and is not available in any retail stores. Since you can’t try it out in a brick-and-mortar shop, Sealy offers a 100-night, risk-free trial. If you decide it’s not the mattress for you in that time, you can return the bed and get a full refund. We have seen other brands — such as Tuft & Needle, Casper, and Purple — sell their beds at retail stores, but so far Cocoon Chill hasn’t made the jump.

Will my new mattress smell?

After unboxing a new Cocoon Chill mattress, there may be a slight smell. It’s called “off-gassing,” and is caused by the cells in the foam opening. It should go away in a few days.

Does Cocoon Chill have a break-in period?

Sealy does not have a minimum break-in period, but the company does recommend you sleep on your new mattress for at least 30 nights before requesting a return. This is because it can take some time to get used to a new bed. Sealy says if you are not happy with your new bed, you can return it and exchange it risk-free during the first 100 nights.

What other products does Sealy Cocoon sell?

In addition to the Chill and Classic mattresses, Sealy sell a mattress foundation and the Sealy Chill Pillow. The company also sometimes bundles in sheets, but it doesn’t look like sheets are available separately.

How firm is the Cocoon mattress?

There are two firmness options to choose from, but we consider both to be around a “medium-firm.”

What is Cocoon Chill?

This is a memory foam mattress with a special cooling cover. It’s cool to the touch.

Is this an expensive mattress?

No. Cocoon is a really affordable mattress that sells for well under $1,500.

What does Sealy Cocoon feel like?

It has a dense/firm memory foam feel.

Is it good for side sleepers?

It should work for side sleepers, though we like Cocoon more for back and stomach sleepers.

Where do I try a Cocoon mattress?

Cocoon mattresses aren’t available for trial in brick-and-mortar locations. However, Sealy offers a 100-night, risk-free trial period, allowing customers to return their mattress for a full refund if it doesn’t suit their needs.

Where do I buy a Cocoon mattress?

Cocoon mattresses can be purchased online at cocoonbyseal.com

Is there a Cocoon mattress discount code I can use?

Sealy offers steep discounts on mattress products throughout the year. As of the time of this posting, consumers can receive 35% off their mattress purchase, allowing them to save hundreds on their Cocoon mattress. Use code SY35 to redeem this special offer.

How often will I find a Cocoon mattress sale?

Sealy runs promotions on mattresses periodically throughout the year, offering the strongest discounts during peak holiday seasons. You can also check our Mattress Deals & Coupons page for all the latest discounts on your sleep and mattress needs.