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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: November 9, 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 Mattress Overview

The Cocoon Mattress and Cocoon Chill are two beds that have a lot to offer memory foam lovers who don’t want to spend the money on a more expensive TempurPedic Mattress. In fact, it makes a lot of sense that Sealy made memory foam bed-in-a-box mattresses since the parent company for Sealy, TSI International Group, also owns Tempur-Pedic — the brand that first popularized memory foam mattresses.

This review will focus on two Cocoon mattresses; the Classic and Chill models. Our goal by the end of this review is to get you one step closer to buying a new mattress, whether you decide these beds are right for you or not. Use the links below to quickly jump to any section of this Cocoon mattress review in order

Jump-To Links For This Mattress Review:

Honest YouTube Cocoon Review

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

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

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 ieving, nor should it be since it’s the foundation.

Soft Foam Model

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

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 mattress 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.

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.

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

Cocoons Chill’s 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.

Cocoon Mattress Firmness And Feel

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.

Soft Foam Vs Firm Foam

cocoon chill mattress firmness

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.

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. We think Cocoon feels like a budget version of a TempurPedic mattress.

Cocoon Mattress Responsiveness

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.

Is Cocoon A Good Mattress For Couples?

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. For those of you who share a bed with a hot sleeper, the cooling properties of the cover help make sure you will be able to sleep cool and comfortable, even while sleeping next to someone who is exuding body heat.

Motion Isolation

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.

Edge Support

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

This bed also offers 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 ationship and aren’t planning to buy a king size bed.

Cocoon Mattress Sleeper Type Analysis

Back And Stomach Sleepers

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.

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.

Side Sleepers

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.

Combination Sleepers

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. 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.

Petite To Average Individuals

Sleepers who weigh less than ~230 lbs can usually get away with sleeping on most mattresses because their body’s don’t exude a heavy amount of pressure. As such, we think small and moderately-weighted individuals will enjoy both of the Cocoon by Sealy mattresses.

Heavy Individuals

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 entiy of foam.

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 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.

Cocoon Mattress Ratings Online

  • Amazon Reviews: Amazon reviewers give the Sealy Cocoon Chill mattress a 3.5-star rating, citing it for its superior sleep quality and comfort.

Other Sealy Mattress Reviews

Cocoon Chill vs Cocoon Classic Mattress

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

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.

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.

Why Trust Us

Get the kind of sleep you’ve only dreamed of with some help from our team of mattress experts. We personally test more than 150 of the best sleep solutions from over 60 leading brands on site, so you can be sure you’re getting unbiased reviews, fair comparisons and personalized recommendations.

Review team

  • JD
    JD Christison

    Combo Sleeper

  • kenzie
    McKenzie Dillon

    Combo Sleeper

  • Tharon
    Tharon Green

    Stomach Sleeper

  • Owen Poole

    Side Sleeper

Sealy Company Information

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

  • Free shipping and returns via UPS
  • 100-Night Trial
  • 10-Year Warranty


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 & NeedleCasper, 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.

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

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 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.