Oeuf Dual Firm Crib Mattress 6"
The Oeuf Dual Firm Crib Mattress 6" is 6 in thick, per Oeuf. A 6 inch dual-sided mattress with an extra-firm infant side and a plush toddler side, plus an organic cotton cover that is water repellent and machine washable (per the maker).
Made in the USA, per the maker “Made in the USA of eco-friendly and hypoallergenic materials” Source
- $325List price
- 6 inThickness
- Two-stageSides
How the Dual Firm Crib Mattress 6" 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.
Within the typical range for two-stage crib mattresses (5 in to 6 in).
Above the typical range for two-stage crib mattresses ($89.99 to $189.99).
What sets the Dual Firm Crib Mattress 6" apart
Measured against the 82 two-stage crib mattresses we compare, from each maker's published specs.
Next to its closest matches
- Lullaby Earth Breathe Safe Breathable Crib Mattress 2-StageNext to it, the Dual Firm Crib Mattress 6" is $26 more.
- Moonlight Slumber Chill Baby Crib MattressNext to it, the Dual Firm Crib Mattress 6" is $35 more.
- Newton Baby Waterproof Crib MattressNext to it, the Dual Firm Crib Mattress 6" is 0.5 in thicker; $25 less.
Fit check
| Size, per the maker | 52 × 27.75 × 6 in |
|---|---|
| Sides | Two: a firmer infant side and a toddler side, per the maker |
Crib types on Cribpicks that take a full-size crib mattress:
Listed features
- Extra-firm infant side and plush toddler side
- Washable organic cotton cover (per the maker)
Worth checking
- Core materials not detailed by maker
- Cover is water repellent, not described as waterproof
- List price $325
Where to buy the Dual Firm Crib Mattress 6"
Prices and availability change. We may earn a commission from some links.
- 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
| Oeuf Dual Firm Crib Mattress 6" | |
|---|---|
| Type | Two-stage crib mattress |
| List price | $325 |
| Size | 52 × 27.8 × 6 in |
| Thickness | 6 in |
| Core | Not specified by maker (eco-friendly hypoallergenic materials) |
| Two-stage | Yes, infant and toddler sides |
| Firm for infants | Yes, per the maker |
| Washable cover | Yes |
| Organic materials | Yes, per the maker |
| Certifications | GREENGUARD Gold |
Compare the Dual Firm Crib Mattress 6" with
How each closest rival differs from the Dual Firm Crib Mattress 6", from the makers' specs.
- Lullaby EarthBreathe Safe Breathable Crib Mattress 2-Stage6 in thick$299$299
- $26 less
- Moonlight SlumberChill Baby Crib Mattress6 in thick$289$289.99
- $35 less
- Newton BabyWaterproof Crib Mattress14 lb5.5 in thick$349.99
- 0.5 in thinner
- $25 more
- Newton BabyOriginal Crib Mattress14 lb5.5 in thick$299.99
- 0.5 in thinner
- $25 less
Dual Firm Crib Mattress 6": questions answered
From Oeuf's published specs, last checked 2026-11-02.
Will the Oeuf Dual Firm Crib Mattress 6" fit my crib?
The maker lists it at 52 × 27.75 × 6 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 Oeuf Dual Firm Crib Mattress 6" 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.
Is the Oeuf Dual Firm Crib Mattress 6" waterproof or washable?
It has a removable, machine-washable cover.
What's the difference between the Oeuf Dual Firm Crib Mattress 6" and the Lullaby Earth Breathe Safe Breathable Crib Mattress 2-Stage?
By the maker specs, the Breathe Safe Breathable Crib Mattress 2-Stage lists for $26 less. 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
- NaturepedicBreathable Organic 2-Stage Baby Crib Mattress14 lb6 in thick$369
- BabylettoPure Core Crib Mattress with Dry Waterproof Cover (2-Stage)11 lb5 in thick$249
- BabylettoPure Core Crib Mattress with Hybrid Quilted Waterproof Cover (2-Stage)11 lb5 in thick$249
- Delta ChildrenIonic Breathe Crib and Toddler Mattress with Cloud Core16.6 lb5.3 in thick$399.99
- SaatvaCrib Mattress18 lb6 in thick$359
- Newton BabyEssential Waterproof Crib Mattress13 lb4 in thick$249.99
Where these specs come from
Last checked 2026-11-02. Spot something wrong? Tell us. Read our editorial and safety policy and corrections.