Sealy Baby Flex Cool 2 Stage Breathable Crib Mattress with Toddler Bed Fit, Waterproof & Airy Cotton Cover, 204 Premium Coils, GREENGUARD Gold Certified, Safety & Quality Tested, Made in USA, 52×28″
$129.97
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Price: $129.97
(as of Nov 11, 2025 19:23:54 UTC – Details)
Give your baby the perfect balance of comfort, safety, and support with the Sealy FlexCool 2-Stage Baby waterproof crib mattress and Toddler Mattress. Designed with premium materials and trusted craftsmanship, this breathable crib mattress grows with your child from newborn to toddler years. The natural cotton cover promotes airflow and breathability, keeping baby’s sleep environment cool and comfortable, while a built-in airflow pocket enhances ventilation. Multiple layers of sustainable cotton cushioning surround a 204 heat-tempered interwoven coil system that flexes under baby’s movement for targeted support. The steel edge frame and corner pillars create firm, supportive sides for a secure sheet fit and lasting durability. Parents love the PVC-free waterproof barrier that protects against leaks and accidents without sacrificing breathability or quietness. All Sealy Crib Mattresses meet or exceed strict ASTM safety, flammability, durability, and air quality standards, including GREENGUARD Gold Certification for a healthier indoor environment. It’s also compliant with the Children’s Safe Products Act and made without phthalates, lead, latex, or harsh VOCs. Measuring approximately 52″ x 28″ x 5.5″, this lightweight standard size crib mattress fits snugly in most cribs and toddler beds, making sheet changes quick and easy. Proudly made in the USA, Sealy Baby mattresses are trusted by families for their proven quality, safe materials, and superior comfort. Add the Sealy FlexCool 2-Stage baby bed mattress to your baby registry essentials for a peaceful night’s sleep—both for your little one and for you.
Natural & Cooling Breathable Crib Mattress – Cotton surface and airflow pocket offers breathability on baby’s gentle skin. PVC-free waterproof barrier protects crib and mattress from leaky messes. Soft fabric is quiet and contains no harmful chemicals
2 Stage Dual Sided Crib Mattress Design – Grow with me full size crib mattress design offers a firmer infant side ideal for newborns and a cozier side to fit full size toddler mattress. Measures 52×28″ to snugly fit in babys standard full size crib and toddler bed
GREENGUARD GOLD Certified & Non Toxic Crib Mattress – GREENGUARD GOLD Air Quality Certified, contains no harmful chemicals. Coil mattresses are tested to more standards than foam ones, passing ASTM safety standards
Durable Infant Crib Mattress – American steel coils flex to adjust to baby’s body to provide superior posture support. Sustainable & natural cotton comfort padding. Steel edges plus corner/side strength pillars maintain firmness as baby grows.
Trusted American Quality Sealy Baby Crib Mattress – Proudly made in the USA, safety tested and quality controlled materials crafted in one location by expert crib mattress team. Sealy is America’s Most Trusted mattress brand and the best crib mattress for your little one.
Pair with Sealy Crib Mattress Protector – For the perfect pair, complete your Sealy toddler bed mattress with a coordinating Sealy Crib Mattress Pad (available in 1-pack and 2-pack options)
8 reviews for Sealy Baby Flex Cool 2 Stage Breathable Crib Mattress with Toddler Bed Fit, Waterproof & Airy Cotton Cover, 204 Premium Coils, GREENGUARD Gold Certified, Safety & Quality Tested, Made in USA, 52×28″
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$129.97
Jackie Z –
Also good for cats
Added the crib sheets and before we could put it in the crib, it was already being tested. The baby also loved it. It’s firm but soft and thick. Seems like good quality thus far.
Rachel M. –
Worth every penny!
Fantastic crib mattress. It feels so comfortable and I notice that my son sleeps much better on it than his old one.
Art Charlestown RI –
Excellent
Excellent crib mattress bought one 3 years ago for my granddaughter she is still using it. Bought another a month ago for my 2nd granddaughter.
chris w –
Impressed with comfort
Using this cool matress in fl with a toddler bed. Child sleeps really well on it, and even mom likes it and says it’s very comfortable when it’s snuggle time right before bedtime. 5 star purchase for us, worth the Xtra money to go with this mattress.
Courtney Rakovitis –
Not as waterproof as I thought it would be
I thought this mattress was good value for the money we needed a good mattress quick for our toddler and it is a good cheaper option. It was labeled to be waterproof but the material soaks ip liquids and leaves stains from said liquids even with a mattress cover which bummed me out. I pull have preferred a material of the mattress to be something you could wipe with disinfectant wipes. It was easy to set up but I don’t agree with it being waterproof.
Coco –
Good mattress
Good quality, was able to put my face up to it and breath
Patricia L. Longtin –
Highly recommended
I wanted a waterproof 6-inch mattress for the crib, and this one is perfect. I highly recommend.
Angela and Bill –
Quality
This is a good mattress. My one son who 2.5 has used this mattress since day one and it is still supportive and shows no wear on it. I actually repurchased this for my 3 year old, for his bed and he loves it. In 2.5 years it has not sunk in the middle like the other purchases for my 3 year old. Definitely worth the money.