Serta CloudCool Crib and Toddler Mattress

The Serta CloudCool Crib and Toddler Mattress weighs 9.7 lb and is 5 in thick, per Serta (made by Delta Children). A 9.7 pound dual-sided mattress with open-air Cloud Core and a removable, machine-washable knit cover over a waterproof barrier.

  • $99.99List price
  • 5 inThickness
  • 9.7 lbWeight
  • FoamCore

All two-stage crib mattresses

How the CloudCool stacks up

Against the 82 two-stage crib mattresses we track. The shaded band is where the middle half of them fall; the dot is this one.

Weight9.7 lb33rd lightest of 69

Within the typical range for two-stage crib mattresses (7.5 lb to 14 lb).

This one
3.5 lbmiddle 10.6 lb36 lb
Thickness5 in

Within the typical range for two-stage crib mattresses (5 in to 6 in).

This one
4 inmiddle 5.5 in6 in
Price$99.9925th lowest price of 79

Within the typical range for two-stage crib mattresses ($89.99 to $189.99).

This one
$44.99middle $129.99$799

What sets the CloudCool apart

Measured against the 82 two-stage crib mattresses we compare, from each maker's published specs.

  • Weight: 9.7 lbin the middle half of the 69 two-stage crib mattresses that publish it (7.5 lb to 14 lb)

Next to its closest matches

Fit check

Size, per the maker52 × 28 × 5 in
SidesTwo-stage, per the maker

Crib types on Cribpicks that take a full-size crib mattress:

Listed features

  • Removable washable cover
  • Waterproof barrier
  • Dual-sided

Worth checking

  • Core material not clearly named

Where to buy the CloudCool

Prices and availability change. We may earn a commission from some links.

good to know
  • Check for recalls: Search the agency's recall list with the model number and date code from the label: CPSC recall search.
  • Safe sleep: see the AAP's guide to safe sleep and NICHD Safe to Sleep. Check the label and the maker's instructions, and ask your pediatrician about your child.

Full specs

Serta (made by Delta Children) CloudCool
TypeTwo-stage crib mattress
List price$99.99
Size52 × 28 × 5 in
Thickness5 in
Weight9.7 lb
CoreFoam: Cloud Core, open-air construction from upcycled materials; CertiPUR-US certified foam ment
Two-stageYes, infant and toddler sides
WaterproofYes
Washable coverYes
Breathable designYes, per the maker
CertificationsGREENGUARD Gold, CertiPUR-US
Warranty5 year
Made inUSA with foreign and domestic parts

Compare the CloudCool with

How each closest rival differs from the CloudCool, from the makers' specs.

Ask the meadow

CloudCool: questions answered

From Serta (made by Delta Children)'s published specs, last checked 2026-11-02.

Will the Serta CloudCool Crib and Toddler Mattress fit my crib?

The maker lists it at 52 × 28 × 5 in, a full-size crib mattress. Check that the mattress size matches what your crib's maker specifies. Safe sleep: see the AAP's guide to safe sleep and NICHD Safe to Sleep. Check the label and the maker's instructions, and ask your pediatrician about your child.

How does a two-stage mattress like the Serta CloudCool Crib and Toddler Mattress work?

One side is firmer for infants and the other is softer for toddlers. Follow the maker's instructions on when to switch sides. Safe sleep: see the AAP's guide to safe sleep and NICHD Safe to Sleep. Check the label and the maker's instructions, and ask your pediatrician about your child.

What is the Serta CloudCool Crib and Toddler Mattress made of?

Cloud Core, open-air construction from upcycled materials; CertiPUR-US certified foam ment. The maker lists GREENGUARD Gold, CertiPUR-US. It weighs 9.7 lb, which matters when you change sheets.

Is the Serta CloudCool Crib and Toddler Mattress waterproof or washable?

The maker says it has a waterproof surface or cover. It has a removable, machine-washable cover.

What's the difference between the Serta CloudCool Crib and Toddler Mattress and the Sealy Butterfly 2-Stage Crib Mattress?

By the maker specs, the CloudCool lists for $20 less, the Butterfly 2-Stage (EM906) is lighter (9 vs 9.7 lb). See them side by side.

Still wondering? Write to us at hello@cribpicks.com and we'll look it up.

More two-stage crib mattresses

Where these specs come from

Last checked 2026-11-02. Spot something wrong? Tell us. Read our editorial and safety policy and corrections.