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Cocoon Chill Hybrid Mattress Review

The Cocoon Chill Hybrid is Sealy’s fresh take on the original all-foam Cocoon Chill mattress. Sealy’s new hybrid combines comfortable memory foam with supportive pocketed coils to create a new, cooler Cocoon Chill mattress that still ships right to your door.

Is the Cocoon Chill Hybrid right for you? And does it really sleep cooler than the original Cocoon Chill mattress? Read on below to find out. Or, if you’re in a rush, skip down to my review summary.

Save 35%

The Cocoon Chill Hybrid is a supportive hybrid mattress that sleeps cool to help hot sleepers. Click this button to save 35%.

Brand Snapshot

Sealy is one of the most well-established brands in the mattress industry. They’re known for their Posturepedic technology, which helps sleepers keep their spines neutrally aligned and avoid back pain. All Sealy mattresses are made in the USA, which is a nice perk for those who like to buy domestic products.

The Cocoon Chill Hybrid is the second mattress in the Cocoon line, so we’ll be comparing it to the original Cocoon Chill mattress later on. We’ll also compare this hybrid to some of the Best Cooling Mattresses on the market: the DreamCloud mattress and the Bear Pro mattress.

First, let’s discuss what’s inside the Cocoon Chill Hybrid.

What is the Cocoon Chill Hybrid Mattress Made Of?

The Cocoon Chill Hybrid combines a memory foam comfort layer with a wrapped coil support layer and polyurethane foam base. The hybrid construction fuses the pressure-relieving feel of memory foam with the bounce of steel coils. This makes the Chill Hybrid more responsive than a typical memory foam mattress, which is great for combination sleepers.

Let’s dive into each layer in detail to really get a feel for this mattress!

Cocoon Chill Hybrid Mattress
The Cocoon Chill Hybrid in for Sleepopolis review.

Cover — The Chill Hybrid’s cooling cover is made of cozy stretch knit fabric. The knit top layer is a “phase change material,” meaning this fabric absorbs and dissipates body heat instead of trapping it. This is a great feature for hot sleepers.

Comfort Layer — The comfort layer of the Chill Hybrid is made with Sealy’s perfect fit memory foam. This firmer-feeling layer of memory foam contours to your body shape, which provides nice sinkage and pressure relief.

Transition Layer — The Chill Hybrid’s transition layer is made of pocketed coils. These coils are individually wrapped in fabric to increase airflow and reduce motion transfer. Something I really like about the Cocoon Chill Hybrid is that the edges of its support layer are lined with extra-strong steel coils. This additional edge support makes the Chill Hybrid a great option for couples who like to spread out over the entire mattress.

Foundation Layer — The foundation of the Chill Hybrid is a base layer of high-density poly foam. This layer provides additional firm support to sleepers.

Cocoon Chill Hybrid Construction
A look inside the Cocoon Chill Hybrid.

What Does the Cocoon Chill Hybrid Mattress Feel Like?

So what’s it like to lie down on the Cocoon Chill? Keep in mind that feel and firmness are subjective. Sleepers will experience a bed’s firmness differently depending on their body types and sleeping positions.

For reference, I’m 5’9”, about 190 lbs, and like to sleep on my stomach.

Cocoon Chill Hybrid Firmness Graphic
The Cocoon Chill Hybrid on the Mattress Firmness Scale.

I was surprised by how firm the Cocoon Chill Hybrid felt. Compared to other memory foam mattresses, which are on the soft to medium firm side, the Chill Hybrid felt quite firm. I gave it about a 7 out of 10 on the firmness scale. Compared to the industry standard for medium firmness, 6.5 out of 10, the Chill Hybrid is a firm mattress.

I’d recommend this bed to back sleepers who want a memory foam feel, but need support to keep their spines neutrally aligned.

The Chill Hybrid should be pretty comfortable for side sleepers too. After the initial firm feel, the memory foam should allow them to sink into the mattress for some pressure relief at the shoulders and hips. Side sleepers who want a soft feeling mattress might not be happy on the Chill Hybrid. These sleepers might want to check out one of the less firm Sealy mattresses, like the Sealy Premium Hybrid.

Side sleeper on Cocoon Chill Hybrid
Side sleepers might like the sinkage on the Cocoon Chill Hybrid.

The Cocoon Chill Hybrid is also a great option for combination sleepers. Normally I’d advise these sleepers to stay away from memory foam, as the body-contouring and sinkage this material provides usually makes it too hard for them to change positions at night. The Cocoon Chill Hybrid is much more responsive than a typical memory foam mattress, so combo sleepers looking for a memory-foam feel might want to check it out.

Save 35%

The Cocoon Chill Hybrid is a supportive hybrid mattress that sleeps cool to help hot sleepers. Click this button to save 35%.

Testing the Cocoon Chill Hybrid Mattress

Firmness level and feel are subjective, so I also tested the Cocoon Chill Hybrid’s pressure relief, motion transfer, and edge support to give you a more objective look at this bed. Let’s take a look at pressure relief first.

Pressure Relief

It’s important that your mattress doesn’t put too much force on the pressure points in your hips, shoulders, and lower back, as it can lead to soreness and pain, but too little pressure could mean a lack of support. Ideally, your mattress will balance pressure relief and support in a way that works for your body type and sleep position.

To test the Cocoon Chill Hybrid’s pressure relief, I used a pressure map. I unrolled the mat on the mattress and lay down on top of it. The map turned blue or green in low-pressure areas, and yellow or red in high-pressure areas.

You can see the Chill Hybrid’s pressure map below.

Cocoon Chill Hybrid Pressure Map
The Cocoon Chill Hybrid’s pressure map results.

Back — The pressure map was mostly blue when I was on my back. This is a great sign for back sleepers. The Chill Hybrid felt supportive and kept my spine in neutral alignment while I was on my back. This mattress could be a great firm option for back sleepers, especially those suffering from any lower back pain or stiffness.

Cocoon Chill Hybrid for Back Sleepers
Testing out the Cocoon Chill Hybrid on my back.

Side — I was pretty happy with the results of the pressure map test for side sleepers. There is some green on the pressure map at my hips and shoulders, but no yellow or red areas. Most side sleepers should be happy on this mattress. If you’re looking for a super plush feel, a softer memory foam mattress like the Nectar might be a better fit for you.

Cocoon Chill Hybrid Side Sleeper
Testing the Cocoon Chill Hybrid on my side.

Stomach — As you can see, the Chill Hybrid doesn’t create much pressure when I’m on my stomach. I felt my hips sink into this mattress, which is not a great sign for stomach sleepers. They need extra lift at the hips to keep their spines in a straight line to avoid back pain. However, if you’re a back and stomach or stomach and side combination sleeper, this mattress could be just firm enough for you.

Cocoon Chill Stomach Sleeping
Testing the Cocoon Chill Hybrid on my stomach.

Motion Transfer

Next up are the motion transfer and bounce tests. Motion transfer is a measure of how much movement travels from one side of the bed to the other. A bed with low motion transfer, or high motion isolation, absorbs motion. If you sleep with a partner, you’ll want a bed with low motion transfer so you’re not disturbed when they move around at night.

To test motion transfer, I dropped a steel ball onto the mattress from varying heights. A seismometer on the other side of the bed measured how much of the motion traveled from one side of the bed to the other.

I also tested out the responsiveness, or bounce, of this mattress by bouncing a steel ball on its surface. This is another measure that shows how easy it would be to change positions on the Chill Hybrid.

Cocoon Chill Hybrid Motion Transfer
The Cocoon Chill Hybrid’s motion transfer test results.

The Cocoon Chill Hybrid performed well on the motion transfer test. Its memory foam layer did a nice job absorbing motion before it traveled across the bed. This mattress should be a good option for anyone who sleeps with a restless partner or pet. You shouldn’t feel disturbed by them moving around on the bed at night.

I was pleasantly surprised by the Chill Hybrid’s bounce test result. I expected the memory foam layer to be fairly unresponsive, but unlike most memory foam it had a nice bounce to it. I also found it easy to change positions and roll over on this mattress. I’d say the Chill Hybrid is a great choice for combination sleepers who want a memory foam feel.

Edge Support

Edge support is a measure of how sturdy the edges of a mattress are. A mattress with good edge support won’t collapse when you sit or lie on its edge. This is a great feature for couples who need to be able to spread out to the edges of the bed comfortably.

I was impressed with the high-quality edge support on the Cocoon Chill Hybrid. The sides of this mattress are reinforced with stronger steel coils. They felt nice and sturdy and didn’t collapse when I rolled towards them.

The strong support at the edges should also lend some more durability to the Chill Hybrid. This mattress shouldn’t start sagging at the edges anytime soon. All in all, this mattress is a great choice for couples.

Save 35%

The Cocoon Chill Hybrid is a supportive hybrid mattress that sleeps cool to help hot sleepers. Click this button to save 35%.

Cocoon Chill Hybrid Mattress Vs.

Let’s take a look at how the Cocoon Chill Hybrid compares to two other cooling mattresses on the market, the Bear Pro and the DreamCloud mattresses. While all three mattresses include cooling technology, there are a few key differences between these beds.

Bear Pro Mattress

  • Like the Cocoon Chill Hybrid, the Bear Pro is a cooling mattress, but the Bear Pro’s cooling Celliant cover is also specially designed to help speed up active recovery. Athletes looking for help with temperature regulation might like the Bear Pro.
  • Unlike the Chill Hybrid, the Bear Pro is an all-foam mattress. This gives it an edge with strict side sleepers, who may prefer the plusher feel of the Bear Pro to the firmer support the Chill Hybrid offers.
  • The Bear Pro is not as bouncy or responsive as the Cocoon Chill Hybrid. Combination sleepers who need some mobility will most likely prefer the Cocoon.
  • If you’re curious about the Bear Pro mattress, you can find out more in my full Bear Pro Review.

DreamCloud Mattress

  • The Cocoon Chill Hybrid and DreamCloud mattresses are both hybrid mattresses that combine pocketed coils and memory foam. Back sleepers should enjoy the balanced support in both beds.
  • Like the Chill Hybrid, the DreamCloud mattress is a great option for couples. Both mattresses have great edge support and provide plenty of room to spread out.
  • Like the Bear Pro and the Cocoon Chill Hybrid, the DreamCloud is a cooling mattress. The DreamCloud’s comfort layer combines gel memory foam and poly foam, so it’s a nice cooling option for sleepers who don’t want an all-memory foam feel.
  • Interested in dreaming on the DreamCloud? Take a look at my DreamCloud Mattress Review to learn more about this bed.

Other Models

As I mentioned above, Sealy’s original Cocoon mattress is the Cocoon Chill. The original Sealy Cocoon is an all-foam bed-in-a-box. Unlike the Chill Hybrid, the original Chill uses a high-density polyurethane foam base, rather than a pocketed coil support layer. Let’s discuss how that affects the mattress’s feel below.

Cocoon Chill Mattress

  • The original Cocoon Chill model is much less bouncy and responsive than the Chill Hybrid. So, if you’re a combination sleeper, you’ll want to opt for the hybrid mattress. If you prefer deeper sinkage, the original Cocoon Chill might be the best fit for you.
  • Both Cocoon mattresses felt surprisingly firm.The all-foam chill was actually a little firmer than the hybrid, so it might be a better choice for stomach sleepers who need support to keep their hips lifted in line with their shoulders.
  • Both of these mattresses also did a great job isolating motion, so couples should be happy on both. However, the extra steel coil edge support in the Hybrid might give this model the edge with couples who like to spread out on the entire bed.
    The original Cocoon Chill is less expensive than the Chill Hybrid, so if you’re on a budget the Cocoon classic might be a better choice for you.

Want to find out more about the original Sealy Cocoon? Check out my full Cocoon Mattress Review.

Should You Buy the Cocoon Chill Hybrid Mattress?

With that, I’ve reached the end of my review. Is the Cocoon Chill Hybrid right for you? Here are some final thoughts to help you decide.

Cocoon Chill Hybrid Pros

  • The mix of responsiveness and pressure relief in the Cocoon Chill Hybrid make it a great fit for combination sleepers who change positions often at night.
  • The memory foam comfort layer on this mattress makes it a great fit for sleepers suffering from shoulder pain. The Cocoon Chill Hybrid will allow just enough give to prevent soreness.
  • The Cocoon Chill Hybrid is a great mattress for memory foam lovers who don’t like to feel stuck in their mattress.
    The temperature regulating materials in this mattress will appeal to sleepers who want a bed that sleeps cool.

Cocoon Chill Hybrid Cons

  • I would not recommend the Chill Hybrid to heavier people. These sleepers may want to look for a traditional innerspring mattress instead. Check out my Best Mattress for Heavy People roundup for some ideas.
  • If you’re looking for a plush mattress, the Cocoon Chill Hybrid might be a little firm for your taste.
  • If you’re a stomach sleeper, you might prefer a firmer mattress. I’d suggest looking into an innerspring or latex mattress.

How Much Does the Cocoon Chill Hybrid Cost?

Price is a big consideration when choosing a new mattress. Take a look at our Cocoon Chill Hybrid pricing chart below to find out more about this mattress’s cost. Remember to check out our Cocoon Chill Hybrid coupons to get a great deal!

The prices listed here will be before discount or offer for each size.

Save 35%

The Cocoon Chill Hybrid is a supportive hybrid mattress that sleeps cool to help hot sleepers. Click this button to save 35%.

Twin38" x 75" x 15"$999
Twin XL38" x 80" x 15"$1,199
Full54" x "75" x 15"$1,299
Queen60" x 80" x 15"$1,499
King76" x 80" x 15"$1,699
Cal King72" x 84" x 15"$1,699

Cocoon Chill Hybrid Mattress Policies

Shipping — Free
Trial Period — 100 Nights
Warranty — 10 Years


How tall is the Cocoon Chill Hybrid?

The Chill Hybrid is 12 inches tall.

Does the Cocoon Chill Hybrid need a box spring?

No, you won’t need a box spring with this sealy mattress. A slatted bed frame or flat surface will work just fine. But if you prefer a box spring you can use one with this mattress. Sealy also offers an adjustable base that is compatible with the Cocoon Chill Hybrid.

Can I flip the Cocoon Chill Hybrid?

No, the Chill Hybrid is not flippable. If you’re concerned about wear, you can rotate your mattress 180 degrees every six months.

How long can I leave a hybrid mattress in a box?

There are varying estimates on how long you can leave a new hybrid mattress in its box. But the general consensus from mattress providers is that you should unbox your new mattress within one month. Once you unbox your mattress, you should allow a few hours for off-gassing and decompression.

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Logan Block
Logan is the content director of Sleepopolis, which means he not only reviews new mattresses every week, but also curates all the comparisons, best of pages, and video guides on the site. He takes a straightforward, honest approach to his reviews and endeavors to give viewers an objective look at each new product he tries out. Logan has perfected his method by personally testing over 200 different mattresses, so he’s not only able to discern the overall vibe of a specific bed, but to contextualize its feel within the bed-in-a-box market as a whole. When he’s not hopping on a new bed or working with our editorial team to whip up an engaging sleep education guide, you can find him reading books on world history, walking his dog Pepper, or searching for the best cheeseburger in New York City.