Dreaming big is far from impossible with Safety 1st Little Snuggles Deluxe Dual 2-in-1 Baby Crib and Toddler Mattress. This 2-in-1 mattress is everything you'll need for your little one's babyhood. With two different levels of firmness use the extra firm support side for infants and the additional cushioning for toddlers. For added support, the thermo-bonded fiber core is made from polyester fibers. Plus, its non-removable outer cover is made with 100% Polypropylene and is waterproof and stain resistant to wipe clean easily within seconds. The Little Snuggles Mattress is suitable for any standard mattress with internal measurements of 285/8 in. X 53 in. Made without the use of flame retardant chemicals this mattress has achieved GREENGUARD Gold certification for 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.