Cocoon Chill by Sealy Mattress Review

If you’re looking for a mattress that has a true memory-foam feel but doesn’t retain too much heat, consider the Cocoon Chill by Sealy Mattress. Cocoon is Sealy’s “bed-in-a-box” brand, and has two products: The Classic Cocoon, which is more budget-friendly, and the Cocoon Chill, which has heat-absorbing memory foam! Both mattresses are available in two firmness options, which makes finding your perfect memory foam a breeze!

Below we have our detailed review for the Cocoon Chill by Sealy Mattress. We’ll dive into how the Cocoon Chill performs for comfort, off-gassing, motion transfer, and most importantly temperature regulation.

cocoon chill by sealy

Materials & Construction:
  • 3 Layers, 10 Inches Thick
  • 2″ Layer – Perfect Fit Memory Foam
  • 2″ Layer – Comfort Transition Foam
  • 6″ Layer – Dense Base Foam

Sealy Mattress’s Cocoon Chill contains three layers that totals to a 10-inch mattress. The top layer is 2 inches of Perfect Fit Memory Foam, which provides maximum pressure relief and optimal contouring and hugging.

The second layer is another 2 inches of Comfort Transition Foam. This helps even the transition between the top comfort layer and denser base foam. Additionally, it works to evenly distribute weight and provide extreme comfort for its sleeper(s).

Finally, the foundation of the Cocoon Chill mattress is 6 inches of Dense Base Foam. This serves as the core of the mattress, and is the bulk of the support.

All of this is covered by a cover that is a blend of cotton and polyester. Moreover, this unique cover contains phase-changing material, which works to keep you cooler and quickly wick away moisture.

Sleeping on the Cocoon Chill Mattress:

 For our review, we slept on the Cocoon Chill’s soft option and found our expectations were met. It is a true memory foam mattress, and the soft option wasn’t too soft—just soft enough to easily hug your body. It did a great job evenly distributing weight and provided a comfortable sleeping experience.

Comfort and Support:
  • Two Comfort Options: Soft & Firm
  • True Memory Foam Feel: Cocooning & Pressure Relieving
  • Good Support and Cool to the Touch Cover

 As we mentioned earlier, the Cocoon Chill comes in two firmness levels: soft and firm. This allows more room to decide which sleeping surface better fits your preferences.

The soft option falls around a 4.5 on the firmness scale (1=softest; 10=firmest). For memory foam, this is more of a medium-soft to medium feel. You don’t want memory foam to be too soft, otherwise you’ll feel stuck in your mattress. And with the Cocoon Chill, the whole point is to have a comfortable, cool sleep; memory foam that is too soft will have too much sink, and you will ultimately heat up more easily. This medium-soft balance is great because you feel cradled by the comfort layers, but not so much that you lose that much-needed support. We think this option is ideal for back or side sleepers.

On the flip side, the firm option falls around a 7.5 to 8 on the firmness scale—a true, firm feel. This option is ideal for dominant stomach or back sleepers who crave more support.

Temperature Regulation:
  • Thermic Phase Changing Material Cover
  • Dense Foams for Solid Support & Less Sinking

The Cocoon Chill is designed with the primary intention of helping you stay cool throughout the night. The cover is comprised of thermic, phase-changing material that helps dissipate heat, and the firmer option also works to provide a cooling sleep since it has a more “on the bed” feeling.

For our review, we found the softer option was definitely cool to the touch and lived up to our expectations of providing a cool feel. We did notice though that after sleeping on the Cocoon Chill for several hours, it became a bit less cool and “cocooned” you more. If you choose the Cocoon Chill’s firm option, you’ll probably experience a more neutral temperature when sleeping.

Motion Transfer:
  • Very Minimal Motion Transfer
  • All Foam that easily Absorbs Movement

 The Cocoon Chill minimizes motion transfer very well. It combines dense memory foam, comfort transition foam and solid base foam to make for little or no disturbance. Since this is an all-foam mattress, it’ll successfully absorb any vibrations or movements, even for the lightest sleeper!

Edge Support:
  • Dense and Durable Foams: Consistent Feel
  • Fully Usable Sleeping Surface

The Cocoon Chill’s surface is fully usable, whether you’re sleeping in the middle or on the edge. It is made with dense materials such as a durable base foam and solid memory foam, and these contribute to a stronger, solid edge for the entire mattress. Additionally, the Cocoon Chill has a very even, flat surface that slowly responds to your weight and is very supportive.

Delivery, Unboxing & Off Gassing:
  • Free Delivery – Roll Packed

The Cocoon Chill is made in the USA, and is roll-packed and shipped for free right to your door! Once you receive the mattress, we recommend another person help you maneuver it through your home—it will weight around 60 pounds. When the mattress is finally where you want it, the unboxing process is quite simply: remove and unroll the mattress, and cut the plastic open. We recommend waiting for the mattress to fully expand and letting it breathe for 24-48 hours.



See how easy and quick it is to unbox the Cocoon Chill mattress in our video below!

Off Gassing:

  • USA Made Product
  • Minimal Off Gassing

When unboxing your Cocoon Chill mattress, you may notice some minimal off gassing. However, it should air out fairly quickly! Since the mattress is made in the USA it is fashioned to ensure noxious odors are kept to a minimum. Most of the time the scent originates from the plastic wrap it comes in. Regardless, we recommend letting the mattress breathe for several hours for any and all odors to dissipate.


In a Queen size, the Cocoon Chill by Sealy runs at $949. This includes a 10-year warranty and a 100-night trial period as well as free shipping. For a true memory foam mattress, this price is a very good value. Not only do you receive optimal foam comfort, but you also get minimal motion transfer, excellent temperature regulation and edge support, and an advanced cover that will also help drive out heat! Also, make sure to use our $100 coupon for the best pricing! Get the code below the latest pricing.

Latest Pricing:

  • Twin – $549 – $100 coupon = $449
  • Twin XL – $599 – $100 coupon = $499
  • Full – $799 – $100 coupon = $699
  • Queen – $949 – $100 coupon = $849
  • King – $1149 – $100 coupon = $1049
  • California King – $1149 – $100 coupon = $1049

Save $100 on any Cocoon by Sealy mattress with code: OSG100 at

cocoon chill by sealy

Trial Period & Warranty:
  • 100 Night Trial Period
  • 10 Year Warranty

The Cocoon Chill offers a 100-night trial period, which is average for the online mattress industry. This will allow you ample time to try out the mattress and decide if it’s right for you!

Additionally, the Cocoon Chill comes with a 10-year warranty. Like most mattress warranties, the Sealy warranty is prorated to compensate for the mattress’s natural wear over time.

Cocoon Chill by Sealy Conclusion:

The Cocoon Chill by Sealy Mattress may be right for you if:

  • You like the feel of a true, memory foam mattress that comes with more than one firmness option
  • If you want a mattress with optimal motion isolation and cooling properties
  • You want a mattress from a recognizable brand that is reputable and offers high-quality mattresses at great price points

For more information, please visit Cocoon by Sealy HERE!

Cocoon Chill Mattress Rating
  • Materials & Construction
  • Comfort & Support
  • Temperature Regulation
  • Motion Transfer
  • Edge Support
  • Delivery & Off Gassing
  • Value
  • Trial Period & Warranty

Cocoon Chill Overall

Overall the Cocoon Chill by Sealy is a great memory foam mattress that is true to what you would expect it to feel like. You even get a choice between soft and firm to make it even more ideal. This unique mattress also offers a unique cooling cover that keeps you comfortable all night long.