Crib mattresses must be firm enough to prevent suffocation risk, certified safe (GREENGUARD Gold minimum), and ideally dual-firm (firmer infant side, softer toddler side). Here are our top picks for newborns and toddlers.
| Pick | Type | Certifications |
| Newton Baby Crib Mattress | Breathable foam | GREENGUARD Gold |
| Naturepedic Organic | Organic cotton/coil | GOTS, MADE SAFE |
| Sealy Baby Posturepedic | Innerspring | CertiPUR-US |
| Avocado Eco Organic | Organic latex | GOTS, GOLS |
| Saatva Crib Mattress | Hybrid | Greenguard Gold |
1. Newton Baby Crib Mattress
Breathable food-grade polymer. Washable cover. The pediatrician-recommended pick.
2. Naturepedic Organic
GOTS-certified organic with no chemical flame retardants. The gold standard for organic-focused parents.
3. Sealy Baby Posturepedic
Reliable innerspring with high coil count. Dual-firm (firmer infant side).
4. Avocado Eco Organic
Avocado’s baby line — organic Dunlop latex over coils.
5. Saatva Crib Mattress
Saatva’s entry into baby mattresses — premium build with Greenguard Gold certification.
Crib mattress safety rules
Must be firm (firmer than adult mattresses). Must fit the crib with no gaps larger than two fingers. Must meet federal crib mattress safety standards.
FAQ
When do babies switch to the toddler side?
Around 12 months, when they start sitting up. Toddler side is slightly softer.
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