Delta Children 4" Breathable Mini Crib Mattress with Cloud Core

The Delta Children 4" Breathable Mini Crib Mattress with Cloud Core weighs 8.2 lb, is 4 in thick, and is 38 in long, per Delta Children. A 4-inch mini crib mattress with a Cloud Core, a newborn side and a washable knit cover.

Made in the USA, per the maker “Made in the USA with foreign and domestic parts” Source

  • $99.99List price
  • 4 inThickness
  • 8.2 lbWeight
  • PolymerCore

All mini and portable crib mattresses

How the 4" Breathable Mini Crib Mattress with Cloud Core stacks up

Against the 34 mini and portable crib mattresses we track. The shaded band is where the middle half of them fall; the dot is this one.

Length38 in

Within the typical range for mini and portable crib mattresses (37.5 in to 38 in).

This one
30.1 inmiddle 38 in38 in
Width24 in

The same as most mini and portable crib mattresses (24 in).

This one
23.2 inmiddle 24 in28 in
Weight8.2 lb27th lightest of 29

Above the typical range for mini and portable crib mattresses (2.8 lb to 8 lb).

This one
1.6 lbmiddle 3.9 lb14 lb
Thickness4 in

Within the typical range for mini and portable crib mattresses (3 in to 4 in).

This one
2 inmiddle 3 in5 in
Price$99.9925th lowest price of 34

Within the typical range for mini and portable crib mattresses ($39.99 to $119).

This one
$29.99middle $59.99$299

What sets the 4" Breathable Mini Crib Mattress with Cloud Core apart

Measured against the 34 mini and portable crib mattresses we compare, from each maker's published specs.

  • Washable cover5 of the 15 mini and portable crib mattresses with this listed have it
  • Weight: 8.2 lbabove the middle half of the 29 mini and portable crib mattresses that publish it (2.8 lb to 8 lb)

Next to its closest matches

Fit check

Size, per the maker38 × 24 × 4 in
Fits, per the makerMaker says it fits most mini cribs and portable cribs; not designed for standard cribs or Pack 'n Plays; measure your crib first.
SidesTwo: a firmer infant side and a toddler side, per the maker

Listed features

  • Removable machine-washable cover
  • Lifetime warranty

Worth checking

  • Priced above most mini mattresses

Where to buy the 4" Breathable Mini Crib Mattress with Cloud Core

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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

Delta Children 4" Breathable Mini Crib Mattress with Cloud Core
TypeMini or portable crib mattress
List price$99.99
Size38 × 24 × 4 in
Thickness4 in
Made forMaker says it fits most mini cribs and portable cribs; not designed for standard cribs or Pack 'n Plays; measure your crib first.
Weight8.2 lb
CorePolymer: polymer/fiber: "Cloud Core" made from upcycled materials
Two-stageYes, infant and toddler sides
Firm for infantsYes, per the maker
WaterproofYes
Washable coverYes
Breathable designYes, per the maker
CertificationsGREENGUARD Gold, JPMA certified
WarrantyLimited lifetime
Made inUSA with foreign and domestic parts

Compare the 4" Breathable Mini Crib Mattress with Cloud Core with

How each closest rival differs from the 4" Breathable Mini Crib Mattress with Cloud Core, from the makers' specs.

Ask the meadow

4" Breathable Mini Crib Mattress with Cloud Core: questions answered

From Delta Children's published specs, last checked 2026-11-02.

What does the Delta Children 4" Breathable Mini Crib Mattress with Cloud Core fit?

The maker lists it at 38 × 24 × 4 in. Per the maker: Maker says it fits most mini cribs and portable cribs; not designed for standard cribs or Pack 'n Plays; measure your crib first. Mini crib sizes vary by brand, so check your crib's manual for the exact mattress size it takes.

How does a two-stage mattress like the Delta Children 4" Breathable Mini Crib Mattress with Cloud Core 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 Delta Children 4" Breathable Mini Crib Mattress with Cloud Core made of?

Polymer/fiber: "Cloud Core" made from upcycled materials. The maker lists GREENGUARD Gold, JPMA certified. It weighs 8.2 lb, which matters when you change sheets.

Is the Delta Children 4" Breathable Mini Crib Mattress with Cloud Core 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 Delta Children 4" Breathable Mini Crib Mattress with Cloud Core and the DaVinci Deluxe Coil Firm Support Mini Crib Mattress?

By the maker specs, the 4" Breathable Mini Crib Mattress with Cloud Core lists for $19.01 less, the Deluxe Coil Firm Support Mini Crib Mattress is lighter (8 vs 8.2 lb). See them side by side.

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

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Where these specs come from

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