Give your little angle big dreams with our Safety 1st Little Angels crib and toddler bed mattress. Made with a high-density thermo-bonded core made from polyester fibers that offers optimal support, this mattress is the perfect way to set your baby slumbering. The removable outer cover is made from polyester and rayon on Bamboo to provide a comfy surface that is also water resistant and easy to clean. The Little Angels baby crib mattress is lightweight and durable and fits standard crib with internal measurements of 285/8 in. X 53 in. This Safety 1st mattress is made without the use of flame retardant chemicals, comes with a 10-year limited warranty and it is assembled in Canada.