๐Ÿ‡บ๐Ÿ‡ธ United States ยท Memory Foam vs Foam

Cocoon by Sealy ChillvsPlank by Brooklyn Bedding

Which one is best for you? Cocoon by Sealy Chill vs Plank by Brooklyn Bedding - 2026 comparison by Vs Mattress

Vs Mattress is reader-supported, that means if you buy something via a link on this page, we might earn a commission. Thank you kindly.

Cocoon by Sealy ChillSave 35% + Free Pillows & SheetsPlank by Brooklyn Bedding25% OFF
Cocoon by Sealy Chill logoCocoon by Sealy Chill

Cocoon by Sealy Chill

by Sealy ยท Memory Foam

Save 35% + Free Pillows & Sheets

10 years ยท 100-night trial

Plank by Brooklyn Bedding logoPlank by Brooklyn Bedding

Plank by Brooklyn Bedding

by Brooklyn Bedding ยท Foam

25% OFF

10 years ยท 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

Plank by Brooklyn Bedding

Twin$749
Twin XL$849
Full (Double)$999
Queen$1,332
King$1,532
California King$1,532

Essential information

Cocoon by Sealy ChillPlank by Brooklyn Bedding
TypeMemory FoamFoam
Launchedโ€“2008
BrandSealyBrooklyn Bedding
Made inUnited StatesUnited States
Unique points

3 layer construction:

  • Perfect Fit Memory Foam
  • Personalized Comfort Layer
  • Support Foam.

Inspired by the minimalist approach to sleep in the Far East, the Plank is the firmest, flattest, healthiest way to sleep. It has 4 layers of construction:

  • 0.75" Quilted Top
  • 2" TitanFlex Foam
  • 7" High-Density Base Foam
  • 1.5" Quilted Bottom.
Videoโ€“The Plank Firm by Brooklyn Bedding - Firmest, Flippable Mattress Ever

Certifications & trial

Cocoon by Sealy ChillPlank by Brooklyn Bedding
OEKO-TEXยฎNoNo
CertiPUR-USยฎYesYes
CertificationsCertiPur-USยฎCertiPur-USยฎ
Other certification infoโ€“โ€“
Sleep trial100 nights120 nights
Warranty10 years10 years
Free shippingโ€“โ€“
Free returnsYesYes
Pay laterYesYes
Delivery info

When you order your Cocoonย™ by Sealy mattress, weย’ll ship it to you (by UPS Ground) for free. Typically, your Cocoonย™ by Sealy will arrive in 5 to 7 days.

Brooklyn Bedding owns the manufacturing process start to finish, designing and engineering mattresses in our very own state-of-the-art factory. They ship products directly to you, passing on the savings. FREE FedEx Ground Shipping to all contiguous U.S. States (48 states, excluding Alaska & Hawaii). On average your order will be delivered within 3-4 business days.

Firmness & feel

Cocoon by Sealy ChillPlank by Brooklyn Bedding
One firmness fits allYesNo
Select your firmnessNoNo
Adjustable firmnessNoYes
Half and half firmnessNoNo
Flippable / reversibleNoYes
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.

Our dual comfort design offers two variations: the top side of the mattress is firm; the bottom side is ultra-firm, allowing for an easily flippable, highly customizable sleep.

Construction & materials

Cocoon by Sealy ChillPlank by Brooklyn Bedding
LayersPerfect Fit Memory Foam, Personalized Comfort Layer, Support Foam.0.75" Quilted Top, 2" TitanFlex Foam, 7" High-Density Base Foam, 1.5" Quilted Bottom.
CoverOur 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.The flippable design of the Plank allows you to choose your ideal firmness level: a .75" quilted top layer, patterned with continuous stitching, ensures zero loft for an ultra-firm sleep experience - or, flip the mattress, and a 1.5" quilted layer, patterned with tack-and-jump stitching, creates minimal loft for a firm sleep experience.
Machine-washable coverNoNo
Ergonomic handlesNoNo
ComfortA 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.Engineered to reduce pressure on your circulatory system the Plank provides for better blood flow - and better lower back support, compelling you to inhale more oxygen while you snooze.
SupportOur 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.The Plank offers a firmer, flatter, flippable surface for a neutral spine position that's better for your back and posture overall. A 2" layer of our firmest transitional TitanFlex foam adds deep compression support. A 7" high density base foam ensures durability and stability for the life of your bed.
Postsโ€“โ€“

Size & weight

Cocoon by Sealy ChillPlank by Brooklyn Bedding
Available sizesTwin, Twin XL, Full (Double), Queen, King, California KingTwin, Twin XL, Full (Double), Queen, King, California King
DimensionsTwin: 10 "Twin: 11.5 "
Twin weight (kg)40N/A
Twin XL weight (kg)42N/A
Full (Double) weight (kg)56N/A
Queen weight (kg)64N/A
King weight (kg)83N/A
California King weight (kg)83N/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, Cocoonโ„ข by Sealy mattresses do not contain latex.

Plank by Brooklyn Bedding

What is the height of the plank firm mattress?

The Plank Firm mattress by Brooklyn Bedding has a height of 11.75 inches.

Is it possible to make the plank firm mattress firmer?

Yes, the Plank Firm mattress has a flippable design that allows you to choose your preferred level of firmness. One side offers an ultra-firm sleep experience with a .75โ€ quilted top layer, while the other side offers a firm sleep experience with a 1.5โ€ quilted layer.

How firm is the Plank Firm mattress?

On a firmness scale of 1 to 10, the firm side of the Plank Firm mattress ranges between 7.5-9, slightly above a traditional firm mattress. The ultra-firm side ranges between 9.5-10.5, making it one of the firmest, flattest sleep surfaces on the market.

Wrap up

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

Related comparisons

โ† All United States comparisons