Your little one will sleep restfully all night long with Safety 1st Heavenly Dreams Deluxe Dual 2-in-1 Baby Crib and Toddler Mattress. Voted as America's Most Recommended™ brand for Crib & Toddler Mattresses, this mattress will grow with your child. Its unique construction offers you two levels of firmness, extra firm support for infants and additional cushioning for toddlers. Made with a high-density thermo-bonded fiber core made from polyester fibers. What's more its 100% Polypropylene non-removable outer cover is waterproof and stain resistant to easily wipe clean. Lightweight and durable, the Heavenly Dreams Deluxe Dual 2-in-1 mattress fits on any standard crib with internal measurements of 28⅝ in. X 53 in. This Safety 1st mattress is made without the use of flame retardant chemicals and has achieved GREENGUARD Gold certification, promising your child a restful sleep with low-chemical emissions. Assembled in Canada and comes with a 10-year limited warranty.