Simmons Kids Radiant Sky Dual Sided Baby Crib Mattress and Toddler Mattress

The Simmons Kids Radiant Sky Dual Sided Baby Crib Mattress and Toddler Mattress is 5 in thick, per Simmons Kids. Dual sided soy foam mattress with waterproof backing on both sides, flippable for the toddler stage.

Made in the USA, per the maker “Made in USA” Source

  • $109.99List price
  • 5 inThickness
  • FoamCore
  • Two-stageSides

All single-sided crib mattresses

How the Radiant Sky Dual Sided Baby Crib Mattress and Toddler Mattress stacks up

Against the 42 single-sided crib mattresses we track. The shaded band is where the middle half of them fall; the dot is this one.

Thickness5 in

Within the typical range for single-sided crib mattresses (5 in to 5.1 in).

This one
4 inmiddle 5 in6 in
Price$109.9933rd lowest price of 39

Above the typical range for single-sided crib mattresses ($63.99 to $99.99).

This one
$39.99middle $79.99$299.99

What sets the Radiant Sky Dual Sided Baby Crib Mattress and Toddler Mattress apart

Measured against the 42 single-sided crib mattresses we compare, from each maker's published specs.

  • No washable coverunlike most: 15 of 18 single-sided crib mattresses have it

Next to its closest matches

  • DaVinci Comfort Crib MattressNext to it, the Radiant Sky Dual Sided Baby Crib Mattress and Toddler Mattress is $11 more; no washable cover (the Comfort Crib Mattress has it).
  • Graco Premium Foam Crib and Toddler MattressNext to it, the Radiant Sky Dual Sided Baby Crib Mattress and Toddler Mattress is $10 more; no washable cover (the Premium Foam Crib and Toddler Mattress has it).
  • Graco Deluxe Foam Crib and Toddler MattressNext to it, the Radiant Sky Dual Sided Baby Crib Mattress and Toddler Mattress is 0.5 in thicker; $10 more; no washable cover (the Deluxe Foam Crib and Toddler Mattress has it).

Fit check

Size, per the maker52 × 27.5 × 5 in
SidesTwo-stage, per the maker

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

Listed features

  • Light, about 8.5 lb shipping weight
  • Waterproof backing both sides
  • Foam holds CertiPUR-US approval

Worth checking

  • Cover is not removable or washable
  • Not listed by the maker: product weight
  • No infant side firmness detail

Where to buy the Radiant Sky Dual Sided Baby Crib Mattress and Toddler Mattress

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

Simmons Kids Radiant Sky Dual Sided Baby Crib Mattress and Toddler Mattress
TypeCrib mattress
List price$109.99
Size52 × 27.5 × 5 in
Thickness5 in
CoreFoam: plant-based soy foam core
Two-stageYes, infant and toddler sides
WaterproofYes
Washable coverNo
CertificationsGREENGUARD Gold, CertiPUR-US
Warranty5-year limited
Made inUSA

Compare the Radiant Sky Dual Sided Baby Crib Mattress and Toddler Mattress with

How each closest rival differs from the Radiant Sky Dual Sided Baby Crib Mattress and Toddler Mattress, from the makers' specs.

Ask the meadow

Radiant Sky Dual Sided Baby Crib Mattress and Toddler Mattress: questions answered

From Simmons Kids's published specs, last checked 2026-11-02.

Will the Simmons Kids Radiant Sky Dual Sided Baby Crib Mattress and Toddler Mattress fit my crib?

The maker lists it at 52 × 27.5 × 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 Simmons Kids Radiant Sky Dual Sided Baby Crib Mattress 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 Simmons Kids Radiant Sky Dual Sided Baby Crib Mattress and Toddler Mattress made of?

Plant-based soy foam core. The maker lists GREENGUARD Gold, CertiPUR-US.

Is the Simmons Kids Radiant Sky Dual Sided Baby Crib Mattress and Toddler Mattress waterproof or washable?

The maker says it has a waterproof surface or cover. The cover is not removable for washing.

What's the difference between the Simmons Kids Radiant Sky Dual Sided Baby Crib Mattress and Toddler Mattress and the DaVinci Comfort Crib Mattress?

By the maker specs, the Comfort Crib Mattress lists for $10.99 less. See them side by side.

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

More single-sided 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.