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Sealy

Sealy Baby Serene Duo-Sleek Crib Mattress 2-Stage Antibacterial Waterproof Infant and Toddler Mattress

Key item features

  • Sealy Serene Duo-Sleek 2-Stage Dual Firm Sustainable PolyFoam Crib Mattress and Toddler Mattress
  • SUSTAINABLE, SLEEK & LIGHTWEIGHT CRIB MATTRESS: A super-sleek streamlined infant mattress and toddler mattress that weighs less than 8 pounds. Airy hypoallergenic poly-core made with a sustainable edge.
  • EARTH FRIENDLIER MATERIALS: Top-quality, locally sourced and air-quality certified cushioning all throughout. Sustainably sourced and made by experts. This model does not have polyurethane foam, latex foam, memory foam, or hard polyethylene plastic "air" cores that create a hard plastic feel.
  • FIRMNESS AND DURABILITY TESTED: Passes the latest crib mattress standards to ensure a firm and supportive sleeping surface for babies as well as firm/flat baby mattress testing to help reduce the risk of suffocation. 
  • TRUSTED BRAND WARRANTY: Sealy supports infants and toddlers; this crib mattress comes with a 10 year warranty on workmanship and materials.
  • SAFETY TESTED AND NON-TOXIC, FOR BABY: Tested to meet or exceed children's safety regulations, no lead or harsh phthalates, no flame retardants, voted Healthiest Crib Mattresses by parents, fits all standard size cribs and toddler beds.
  • AIRFLOW POCKET: Airflow pocket helps the mattress to breathe.
  • EXPERTLY MADE BABY MATTRESSES: More babies sleep on Sealy crib mattresses, which are crafted by crib mattress experts with over 70+ years creating the best baby crib mattresses parents and babies have depended on for decades.
  • AIR QUALITY CERTIFIED: GREENGUARD GOLD Air Quality Certified, helping infants and toddlers experience a healthier indoor environment.
  • WATERPROOF, PEARL EMBOSSED STAIN-RESISTANT COVER: Crib mattresses perform best with a waterproof cover so liquids and germs can easily be cleaned up quickly. 100% waterproof reinforced surface and waterproof lock-stitched binding repels liquids, odors and stains while keeping mold, mildew and wetness from seeping inside.
  • 2-STAGE DUAL FIRMNESS: Infant side is designed to be firmer for newborns and infants for the first year, then flip to the toddler side for extra comfort layers; tags clearly indicate each side for infants and toddlers.
  • Walmart.como ensure a new product that offers the highest safety and quality for you and your family, only buy from listings that are “Sold and Shipped by Walmart.com. To ensure a new product that offers the highest safety and quality for you and your family, only buy from listings that are “Sold and Shipped by Walmart.com.” The Sealy warranty does not cover products purchased from unauthorized sellers. Thank you for considering Sealy crib mattresses. You will be pleased like the millions of families who choose Sealy baby!
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Current price is $64.96
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Customer ratings & reviews

4.5 out of 5 stars
stars2,800 ratings522 reviews
How item rating is calculated
  1. 5 stars78% (2,197)
  2. 4 stars7% (202)
  3. 3 stars4% (120)
  4. 2 stars2% (66)
  5. 1 star8% (215)

Reviews summary

Pros

  • : Provides gentle cushioning for restful sleep.
  • : Offers excellent quality at a reasonable cost.
  • : Provides a comfortable surface for babies and toddlers.
  • : Provides optimal support for babies and toddlers.
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Showing 1-3 of 522 reviews

Oct 10, 2025
April
5 out of 5 stars review

Verified Purchase

Well to be honest I bought this for myself to sleep with my depressed cat who was in the closet after a big move. It was the right size for me to crawl on and him too. And it worked. He wouldn’t come out of his little hidey hole until then and then he came out and slept with me on the mattress. I’m not a little woman by no means and I was comfortable enough on this thing so I imagine a baby would be well comfortable on it.

Helpful?304NL7QTGQ06550787919
Nov 26, 2021
Sablgrl01
5 out of 5 stars review

So nice!

Love it, it has a stage 1 for infants and a stage 2 for toddlers.. it’s a huge upgrade from the old spring crib mattress we had. My 2 year old slept through the night on this versus the night before on his old mattress

Incentivized Review
Helpful?304NL7QTGQ06550787919
Jun 3, 2025
Momof7
Top Reviewer
5 out of 5 stars review

Verified Purchase

Foam better than coil mattress for toddler back

Replaced 8 yr old coil toddler mattress with this foam mattress and so far the quality is much better. Toddler approves this is much nicer on her back.

Helpful?304NL7QTGQ06550787919