Safety 1st Gentle Dreams Deluxe Dual 2-in-1 Baby Crib and Toddler Mattress will help create the comfortable sleeping space your child deserves. Made with a unique dual construction, choose between the extra firm support and the additional cushioning side, ideal for infants and toddlers respectively. What's more, this mattress is made with a high-density thermo-bonded fiber core made from polyester fibers providing maximum support. Its 100% Polypropylene non-removable outer cover is waterproof and stain resistant to wipe clean in seconds. Made to fit any standard baby crib with internal measurements of 285/8 in. X 53 in. This Safety 1st mattress is made without the use of flame retardant chemicals and has achieved GREENGUARD certification, meeting the standard for low-chemical emissions for a sleep environment that's always safe and sound. Assembled in Canada, this Safety 1st mattress comes with a 10-year limited warranty. Making your baby fall asleep has never been easier, happy sleeping!