Simmons Kids Soothing Nights 3" Mini/Portable Crib Hybrid Mattress

The Simmons Kids Soothing Nights 3" Mini/Portable Crib Hybrid Mattress weighs 3.9 lb, is 3 in thick, and is 36 in long, per Simmons Kids. A thin 3-inch fiber mini crib mattress with a wipe-clean waterproof vinyl cover.

  • $34.99List price
  • 3 inThickness
  • 3.9 lbWeight
  • FiberCore

All mini and portable crib mattresses

How the Soothing Nights 3" Mini/Portable Crib Hybrid 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.

Length36 in

Below 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
Weight3.9 lb14th lightest of 29

Within 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$34.993rd lowest price of 34

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

This one
$29.99middle $59.99$299

What sets the Soothing Nights 3" Mini/Portable Crib Hybrid Mattress apart

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

  • Weight: 3.9 lbin 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 maker36 × 24 × 3 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.

Listed features

  • Low price
  • 5 year warranty
  • Light

Worth checking

  • Only 3 inches thick

Where to buy the Soothing Nights 3" Mini/Portable Crib Hybrid 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

Simmons Kids Soothing Nights 3" Mini/Portable Crib Hybrid Mattress
TypeMini or portable crib mattress
List price$34.99
Size36 × 24 × 3 in
Thickness3 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.
Weight3.9 lb
CoreFiber: firm hypoallergenic fiber core made from recycled bottles (per the maker)
WaterproofYes
CertificationsGREENGUARD Gold
WarrantyLimited 5 year

Compare the Soothing Nights 3" Mini/Portable Crib Hybrid Mattress with

How each closest rival differs from the Soothing Nights 3" Mini/Portable Crib Hybrid Mattress, from the makers' specs.

Ask the meadow

Soothing Nights 3" Mini/Portable Crib Hybrid Mattress: questions answered

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

What does the Simmons Kids Soothing Nights 3" Mini/Portable Crib Hybrid Mattress fit?

The maker lists it at 36 × 24 × 3 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.

What is the Simmons Kids Soothing Nights 3" Mini/Portable Crib Hybrid Mattress made of?

Firm hypoallergenic fiber core made from recycled bottles (per the maker). The maker lists GREENGUARD Gold. It weighs 3.9 lb, which matters when you change sheets.

Is the Simmons Kids Soothing Nights 3" Mini/Portable Crib Hybrid Mattress waterproof or washable?

The maker says it has a waterproof surface or cover.

What's the difference between the Simmons Kids Soothing Nights 3" Mini/Portable Crib Hybrid Mattress and the Kolcraft Pediatric Mini Crib Mattress?

By the maker specs, the Soothing Nights 3" Mini/Portable Crib Hybrid Mattress lists for $5 less, the Pediatric Mini Crib Mattress is lighter (3.6 vs 3.9 lb). See them side by side.

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

More mini and portable 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.