🇺🇸 United States · Memory Foam vs Memory foam

Cocoon by Sealy ChillvsSerta iComfort

Which one is best for you? Cocoon by Sealy Chill vs Serta iComfort - 2026 comparison by Vs Mattress

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Cocoon by Sealy ChillSave 35% + Free Pillows & SheetsSerta iComfortCheck current deal.

Cocoon by Sealy Chill

by Sealy · Memory Foam

Save 35% + Free Pillows & Sheets

10 years · 100-night trial

Serta iComfort

by Serta · Memory foam

Check current deal.

10 years · 120-night trial

Pricing by size

Cocoon by Sealy Chill

Twin$619

Twin XL$709

Full (Double)$819

Queen$1,079

King$1,389

California King$1,389

Serta iComfort

Twinn/a

Twin XL$2,099

Full (Double)$2,299

Queen$2,499

King$2,999

California King$2,999

Essential information

	Cocoon by Sealy Chill	Serta iComfort
Type	Memory Foam	Memory foam
Launched	–	1931
Brand	Sealy	Serta
Made in	United States	United States
Unique points	3 layer construction: Perfect Fit Memory Foam Personalized Comfort Layer Support Foam.	With the iComfort by Serta® mattress, cool, supportive sleep is the priority. The base model (CF1000) has these layers: Carbon Fiber Memory Foam EverCool® Fuze Gel Foam. Three upgrades are available at additional cost.
Video	–	Introducing the iComfort 2020 Foam Collection

Certifications & trial

	Cocoon by Sealy Chill	Serta iComfort
OEKO-TEX®	No	No
CertiPUR-US®	Yes	Yes
Certifications	CertiPur-US®	CertiPur-US®
Other certification info	–	–
Sleep trial	100 nights	120 nights
Warranty	10 years	10 years
Free shipping	–	–
Free returns	Yes	Yes
Pay later	Yes	Yes
Delivery info	When you order your Cocoon by Sealy mattress, well ship it to you (by UPS Ground) for free. Typically, your Cocoon by Sealy will arrive in 5 to 7 days.	Serta mattresses are shipped using the fastest, safest, and most reliable method possible. After ordering, you will be contacted by XPO Logistics to schedule a delivery day and time.

Firmness & feel

	Cocoon by Sealy Chill	Serta iComfort
One firmness fits all	Yes	Yes
Select your firmness	No	No
Adjustable firmness	No	No
Half and half firmness	No	No
Flippable / reversible	No	No
Firmness info	The Cocoon Chill is a medium firmness, about a 6 on the firmness scale. We've found that most sleepers prefer a mattress that's fully supportive but not too firm, so we created a mattress with our Perfect Fit memory foam that adapts to your unique body size, shape and sleep position.	The base model (CF1000) is a medium comfort. Choose the cooling upgrade (CF2000) model if you prefer a firm feel. Both the Max Cooling Upgrade (CF3000) and Max Cooling & Pressure Relief Upgrades (CF4000) offer a selection of feels - medium, plush, ultra plush and firm, plush, ultra plush.

Construction & materials

	Cocoon by Sealy Chill	Serta iComfort
Layers	Perfect Fit Memory Foam, Personalized Comfort Layer, Support Foam.	Carbon Fiber Memory Foam, EverCool® Fuze Gel Foam.
Cover	Our premium stretch-knit cover is infused with a proprietary "Phase Change Material" that absorbs and dissipates heat for a refreshing, cool to the touch surface.	A Max Cold Cover is used in the CF3000 and CF4000 models. Made from super cool high-performance fibers for an instant cool-to-the-touch sensation.
Machine-washable cover	No	No
Ergonomic handles	No	No
Comfort	A top layer of memory foam helps reduce the amount of movement from your sleep partner. The Soft model reduces a bit more motion transfer than the Firm model. Phase Change Material (PCM) absorbs your body heat leaving you with a cool to the touch mattress experience.	Specifically designed mattress to keep even the warmest of sleepers cool. You don't have to be a hot sleeper to love iComfort. You just have to like your sleep environment to be refreshingly comfy. Three cooling upgrades available: Cooling Upgrade (CF2000): 11.5" Additional cooling and firmer support. Max Cooling Upgrade (CF3000): 12.5" Cooler and more breathable. Max Cooling & Pressure Relief Upgrade (CF4000): 13.5" Feels and sleeps cooler, with air support layer to take pressure off joints. Every iComfort mattress is made with our exclusive Carbon Fiber Memory Foam. This system channels heat away from your body. Gel Active® Max Foam (used only in CF2000 model) is an open celled memory foam helps promote airflow, so you don't have that hot, stuffy feeling when falling asleep. UltraCold System (used in the CF3000 and CF4000 models) The layer of extra-cool Carbon Fiber Memory Foam is engineered to work hard at absorbing excess heat from your body, then channel it away, all while you sleep comfortably.
Support	Our high-quality memory foam adapts to your body size, shape and sleep position to ensure a great sleep no matter which feel is right for you. Support Foam base layer engineered to be highly durable and resilient. We've tested it, and we know it bounces back every time.	Multi-layered foam technology adds support, resilience, and temperature regulation for the coolest, most comfortable sleep ever. Carbon Fiber Memory Foam provides exceptional strength for back and neck support. Air Support Foam (used only in CF4000 model) moves with your body and contours around it to help alleviate aches and pains caused by pressure points.
Posts	–	–

Size & weight

	Cocoon by Sealy Chill	Serta iComfort
Available sizes	Twin, Twin XL, Full (Double), Queen, King, California King	Twin, Twin XL, Full (Double), Queen, King, California King
Dimensions	Twin: 10 "	Twin: 10 "
Twin weight (kg)	40	N/A
Twin XL weight (kg)	42	N/A
Full (Double) weight (kg)	56	N/A
Queen weight (kg)	64	N/A
King weight (kg)	83	N/A
California King weight (kg)	83	N/A

FAQs

Cocoon by Sealy Chill

Can you flip the Cocoon Chill mattress?

No, the Cocoon Chill mattress is not designed to be flipped. It is constructed with support layers at the bottom and comfort layers at the top. Flipping the mattress would disrupt the intended firmness and feel.

Is the Cocoon Chill mattress good for side sleepers?

The Cocoon Chill mattress may feel too firm for most side sleepers, but it is an excellent choice for back and stomach sleepers.

Do Cocoon by Sealy mattresses contain latex?

No, Cocoon™ by Sealy mattresses do not contain latex.

Serta iComfort

How long should a Serta iComfort mattress last?

The Serta iComfort mattresses, made with high-density foams, are expected to last for a minimum of 10 years. Regular rotation of the mattress can help prolong its lifespan.

Is Serta iComfort good for back pain?

The Serta iComfort mattress could be beneficial for those experiencing back pain or discomfort at pressure points. Its carbon fiber memory foam core provides firm yet adaptable support, making it a good choice for back sleepers.

Does Serta iComfort have coils?

Yes, the Serta iComfort mattress does contain coils. The new Smooth Hybrid line features Serta's 100 Series 5-Zone Quad Coil Support System, made with 85% recycled steel, which provides targeted pressure relief and support.

Wrap up

Thank you for checking out this Cocoon by Sealy Chill vs Serta iComfort mattress comparison. We have tried to compare all the necessary information to help you choose which mattress is the most suitable for you.

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