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The Sealy Baby Flex Cool 2-Stage Crib Mattress offers a breathable, dual-sided design with 204 premium coils for adaptive support from newborn to toddler. Featuring a PVC-free waterproof cotton cover and reinforced steel edges, it ensures durability and safety. GREENGUARD Gold certified and made in the USA, this mattress meets rigorous safety standards, providing a healthy, comfortable sleep environment that parents trust.






| ASIN | B074N6BQL3 |
| Age Range Description | Baby, Toddler |
| Assembly required | No |
| Batteries required | No |
| Best Sellers Rank | #5,107 in Baby ( See Top 100 in Baby ) #21 in Crib Mattresses |
| Care instructions | Hand Wash Only |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,968) |
| Department | unisex-baby |
| Form Factor | USA standard crib or toddler mattress |
| Import | Made in US |
| Included Components | Crib Mattress |
| Item Weight | 14.9 pounds |
| Item model number | EM443-STS1 |
| Manufacturer | Kolcraft |
| Product Dimensions | 27.25 x 5.75 x 51.63 inches |
| Refill | Innerspring Coils |
| Thickness | 5.75 Inches |
| Volume | 238.4 Fluid Ounces |
| Warranty Description | Limited lifetime warranty on workmanship & materials. |
A**R
Love!
Great mattress! Fits perfectly into our crib, no sinking or noise! Both babies have this mattress in their cribs!
L**T
Great mattress for toddler bed, soft and comfortable and good price point
I bought this mattress for when my child transitioned into her first toddler bed. it fit perfectly and was very comfortable. It also was a great price point and quality was great.
J**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.
S**Y
Great investment for quality baby sleep
Highly recommend this crib mattress! Comfortable for little one, breathable, and easy to change sheets on. It’s got a decent weight to it, so I feel assured my little one will have good support. No shrinkage with daily use so far.
C**S
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.
A**I
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.
C**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.
M**E
Crib mattress
My niece loved it
Trustpilot
2 weeks ago
1 week ago