5 Waterproof Crib Mattresses for Easy Cleanup
Graco’s Premium Foam Crib and Toddler Mattress leads for firm support and GREENGUARD Gold certification, Naturepedic’s Breathable Ultra suits parents wanting a two-stage firmness switch, and Milliard’s dual-sided model covers the budget tier without dropping the waterproof cover. Firmness, cover material, and certification separate the rest.
Graco’s Premium Foam Crib and Toddler Mattress stands out for its firm foam core and GREENGUARD Gold certification. Naturepedic’s Breathable Ultra offers a two-stage firmness switch for toddlers. Milliard’s dual-sided mattress covers the budget tier without dropping the waterproof cover.
Firmness needs differ for infants versus toddlers, and cover materials range from vinyl to polyethylene to organic cotton laminates, which makes this a tricky category to shop. We compared listed firmness ratings, cover material and seam construction, core composition, and certifications such as GREENGUARD Gold and CertiPUR-US as stated on each manufacturer’s product page.
The top picks, ranked
Graco Premium Foam Crib and Toddler Mattress
A firm foam core sits under a waterproof, wipeable exterior listed as phthalate and lead free. GREENGUARD Gold certification covers low chemical emissions on this model. The lightweight build makes sheet changes quicker than heavier alternatives.
Pros
- Firm surface meets standard crib firmness expectations
- Cover wipes clean without needing a separate protector
- Lightweight core makes sheet changes easier
Cons
- Some owners note a mild off-gassing smell on unboxing
- Foam core is thinner than innerspring alternatives
Naturepedic Breathable Ultra Crib Mattress
A firmer infant side and a slightly softer toddler side both come wrapped in a waterproof, non-vinyl surface. Naturepedic lists this model as free of polyurethane foam. Reinforced corners are built to withstand repeated fitted sheet changes.
Pros
- Two firmness sides extend use from infant to toddler
- Non-vinyl cover avoids common vinyl odor complaints
- Reinforced corners hold up to repeated fitted sheets
Cons
- Heavier than foam-only mattresses, harder to flip solo
- Higher price point than single-stage foam models
Sealy Soybean Foam-Core Infant/Toddler Crib Mattress
Soy-based renewable materials blend into this mattress’s foam core beneath a waterproof, easy-clean cover. CertiPUR-US standards cover the foam’s content and emissions. Everyday spills wipe away without soaking through to the core.
Pros
- Lower typical cost than premium organic lines
- Stain-resistant cover simplifies cleanup
- CertiPUR-US foam meets recognized content standards
Cons
- Firmness feels softer than some infant-focused mattresses
- Edges compress slightly more under weight over time
Colgate Eco Classica III Dual Firmness Crib Mattress
A plant-based foam core sits beneath a waterproof organic cotton and polyethylene laminate cover on this dual-firmness mattress. Colgate lists it as free of vinyl and phthalates. Two firmness sides support both the infant and toddler stages.
Pros
- Organic cotton surface feels softer against skin
- Dual firmness sides support infant and toddler stages
- Vinyl-free cover addresses common material concerns
Cons
- Softer topside not intended as the infant-sleep side
- Costs more than standard foam-only mattresses
Milliard Crib Mattress, Dual Sided Comfort
A firmer infant surface pairs with a slightly cushioned toddler surface on this dual-sided design. Both sides use a waterproof, tear-resistant material over a CertiPUR-US listed foam core. One-handed sheet changes are manageable given the light overall weight.
Pros
- Lower cost than most certified dual-firmness options
- Tear-resistant cover holds up to daily wipe-downs
- Lightweight enough for one-handed sheet changes
Cons
- Cover seams need regular checking for wear
- Thinner core than premium coil-based mattresses
Simmons Kids Beautyrest Beginnings Sweet Slumber Crib Mattress
High-density foam gives this mattress a firm surface rated for infant support. A waterproof, stain-resistant cover wraps the core. Simmons lists it as meeting CertiPUR-US foam standards.
Pros
- Firm density suits newborn sleep surface guidance
- Stain-resistant cover resists diaper leak marks
- Consistent shape retention reported by owners
Cons
- Firmness may feel too rigid once child reaches toddler stage
- No dual-sided option for softer toddler use
Moonlight Slumber Little Dreamer Dual Firmness Crib Mattress
A lightweight foam core sits under a waterproof, antimicrobial-treated cover with dual firmness sides. Moonlight Slumber lists it as free of foam odor through its manufacturing process. Lifting or flipping it takes noticeably less effort than heavier coil models.
Pros
- Lightest mattress in this comparison for easy lifting
- Dual firmness sides cover infant and toddler stages
- Antimicrobial-treated cover resists odor buildup
Cons
- Lighter weight may feel less substantial under a fitted sheet
- Firm side rated slightly softer than dedicated infant-only models
Compared at a glance
| # | Model | Dimensions | Best for | Score | Price |
|---|---|---|---|---|---|
| 1 | Graco Premium Foam Crib and Toddler Mattress | 52 x 27.5 x 5 inches | Best overall | 9.4 | Check price |
| 2 | Naturepedic Breathable Ultra Crib Mattress | 52 x 27.5 x 6 inches | Best for two-stage use | 9.2 | Check price |
| 3 | Sealy Soybean Foam-Core Infant/Toddler Crib Mattress | 51.6 x 27.2 x 5.25 inches | Best value | 9.0 | Check price |
| 4 | Colgate Eco Classica III Dual Firmness Crib Mattress | 52 x 27.5 x 6 inches | Best for allergy-conscious families | 8.7 | Check price |
| 5 | Milliard Crib Mattress, Dual Sided Comfort | 52 x 27.5 x 5 inches | Best budget option | 8.4 | Check price |
| 6 | Simmons Kids Beautyrest Beginnings Sweet Slumber Crib Mattress | 52 x 27.5 x 5 inches | Best for firm support | 8.1 | Check price |
| 7 | Moonlight Slumber Little Dreamer Dual Firmness Crib Mattress | 52 x 27.5 x 5.5 inches | Best lightweight option | 8.0 | Check price |
What to look for
Why a waterproof cover matters on a crib mattress Diaper leaks and spit-up soak into the foam or coil core without a sealed cover, which traps moisture and odor over time. Most mattresses here use polyethylene laminate or non-vinyl coated covers rather than raw vinyl. A wipeable surface lets parents clean between sheet changes without pulling the mattress out of the crib. This matters most during the newborn stage, when leaks happen most often.
Matching firmness to infant sleep guidance Firm support is the standard expectation for infant crib mattresses, reflected in products like the Graco Premium Foam and Simmons Beautyrest Beginnings. Naturepedic Breathable Ultra and Colgate Eco Classica III add a softer toddler-facing side once a child transitions out of infancy. Checking which side is labeled for infant use before installation avoids placing a child on the wrong firmness level. Manufacturer labeling on each mattress indicates which side faces up at each stage.
Which certifications actually matter on the listing GREENGUARD Gold certification addresses chemical emissions, while CertiPUR-US covers foam content and manufacturing standards. Graco and Naturepedic list GREENGUARD Gold here, while Sealy, Milliard, Simmons, and Moonlight Slumber list CertiPUR-US foam instead. Cover material also varies, from organic cotton laminates to polyethylene-coated fabric. Reviewing the specific certification and material listed on the product page confirms what applies to that exact mattress.
Fit, sizing, and keeping a waterproof mattress clean long term Standard crib mattresses measure close to 52 by 27.5 inches to fit standard crib frames without gaps along the sides. A snug fit reduces the risk of a child’s limb slipping between the mattress and crib rail. Mild soap and water wiped across the waterproof cover handles most leaks without removing the mattress. Rotating or flipping dual-sided mattresses at the manufacturer-recommended age extends usable life into the toddler years.
Good to know
What makes a crib mattress waterproof?
A sealed outer cover, typically polyethylene laminate or a non-vinyl coated fabric, keeps liquid from reaching the foam or coil core underneath.
Is a waterproof crib mattress cover necessary if the mattress already has one?
Many parents still add a fitted waterproof pad for extra sheet-level protection, though the built-in cover on mattresses like the Graco Premium Foam is designed to handle leaks on its own.
Foam vs innerspring, which is better for a crib mattress?
Foam mattresses like Graco and Sealy tend to be lighter and easier to handle, while coil-based options like Naturepedic offer firmer edge support. Both types appear with waterproof covers in this comparison.
Are GREENGUARD Gold certified crib mattresses worth the extra cost?
GREENGUARD Gold certification indicates lower chemical emissions based on independent testing standards, which some parents prioritize when comparing similarly specced mattresses.
What size is a standard crib mattress?
Most standard crib mattresses measure approximately 52 by 27.5 inches, matching the interior dimensions of a standard-size crib frame.
Can a dual firmness crib mattress be used from birth?
Yes. Dual firmness mattresses like the Colgate Eco Classica III and Milliard are designed with a firmer infant-rated side meant for use from birth, then flipped later for toddler use.
How do you clean a waterproof crib mattress after a leak?
Wiping the waterproof cover with mild soap and water, then letting it air dry fully before re-making the crib, is the cleaning method described on most manufacturer listings.
Is CertiPUR-US the same as GREENGUARD Gold certification?
No. CertiPUR-US applies specifically to foam content and manufacturing standards, while GREENGUARD Gold measures overall chemical emissions from the finished product.
How firm should a crib mattress be for a newborn?
Newborn sleep guidance calls for a firm surface that doesn’t indent deeply under light pressure, which is why models like Graco and Simmons emphasize firmness on their listings.
When should I switch a crib mattress to the toddler side?
Dual-sided mattresses list a manufacturer-recommended age for flipping, generally once a child transitions from crib to toddler bed, though checking the specific product’s guidance is worthwhile.
Our take
Graco’s Premium Foam Crib and Toddler Mattress balances firm infant support, a wipeable waterproof cover, and GREENGUARD Gold certification. Families wanting a longer-term dual-stage mattress should consider Naturepedic’s Breathable Ultra, while the Milliard model covers the budget end without dropping the waterproof feature.
