Newton Baby Mini Crib Mattress

The Newton Baby Mini Crib Mattress weighs 9 lb, is 3 in thick, and is 37.75 in long, per Newton Baby. A washable Wovenaire polymer core mini mattress with a machine-washable cover, tested to fit four named mini cribs.

  • $199.99List price
  • 3 inThickness
  • 9 lbWeight
  • PolymerCore

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All mini and portable crib mattresses

How the Mini Crib Mattress 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.

Length37.75 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
Width23.75 in

Below the 24 in most mini and portable crib mattresses list.

This one
23.2 inmiddle 24 in28 in
Weight9 lb28th 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
Thickness3 in

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

This one
2 inmiddle 3 in5 in
Price$199.9932nd lowest price of 34

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

This one
$29.99middle $59.99$299

What sets the Mini Crib Mattress 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
  • No waterproofunlike most: 29 of 30 mini and portable crib mattresses have it
  • Weight: 9 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 maker37.75 × 23.75 × 3 in
Fits, per the makerTested to fit: Newton Galileo Mini Crib, Babyletto Origami Mini Crib M6698, DaVinci Dylan Mini Crib M18198, Carter's by DaVinci Colby Mini Crib F11901. Fits rig
SidesTwo-stage, per the maker

Products on Cribpicks this mattress's maker names:

Listed features

  • Core and cover washable
  • Four named mini cribs tested
  • 100 night trial and lifetime core warranty

Worth checking

  • Not waterproof (separate pad sold)
  • Not for play yards

Where to buy the Mini Crib Mattress

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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

Newton Baby Mini Crib Mattress
TypeMini or portable crib mattress
List price$199.99
Size37.8 × 23.8 × 3 in
Thickness3 in
Made forTested to fit: Newton Galileo Mini Crib, Babyletto Origami Mini Crib M6698, DaVinci Dylan Mini Crib M18198, Carter's by DaVinci Colby Mini Crib F11901. Fits rig
Weight9 lb
CorePolymer: Wovenaire core, 90% air and 10% food-grade polymer (maker)
Two-stageYes, infant and toddler sides
WaterproofNo
Washable coverYes
Breathable designYes, per the maker
CertificationsGREENGUARD Gold
WarrantyCore: limited lifetime. Cover and encasement: limited 2 years.
Trial100 nights
Made inCore made in USA; cover origin not state

Compare the Mini Crib Mattress with

How each closest rival differs from the Mini Crib Mattress, from the makers' specs.

Ask the meadow

Mini Crib Mattress: questions answered

From Newton Baby's published specs, last checked 2026-11-02.

What does the Newton Baby Mini Crib Mattress fit?

The maker lists it at 37.75 × 23.75 × 3 in. Per the maker: Tested to fit: Newton Galileo Mini Crib, Babyletto Origami Mini Crib M6698, DaVinci Dylan Mini Crib M18198, Carter's by DaVinci Colby Mini Crib F11901. Fits rig. 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 Newton Baby Mini Crib 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 Newton Baby Mini Crib Mattress made of?

Wovenaire core, 90% air and 10% food-grade polymer (maker). The maker lists GREENGUARD Gold. It weighs 9 lb, which matters when you change sheets.

Is the Newton Baby Mini Crib Mattress waterproof or washable?

The maker does not list it as waterproof, so a fitted waterproof protector helps. It has a removable, machine-washable cover.

What's the difference between the Newton Baby Mini Crib Mattress and the Babyletto Pure Core Midi Crib Mattress with Hybrid Quilted Waterproof Cover (Lightweight)?

By the maker specs, the Pure Core Midi Crib Mattress with Hybrid Quilted Waterproof Cover (Lightweight) lists for $0.99 less, the Pure Core Midi Crib Mattress with Hybrid Quilted Waterproof Cover (Lightweight) is lighter (8 vs 9 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.