Dream On Me, EX6C Visco Pedic Crib & Toddler Standard Mattress is one of the best decisions you can make for your baby, providing them with their best sleep, day or night. Featuring 2 inches of memory foam and a 4 inch core this mattress is constructed of high density polyurethane foam for premium comfort and support. The Fire Blocker Mattress Cover is triple reinforced, hypoallergenic, anti-bacterial and 100% washable (with Mild Soap and Water). Fits standard size cribs and toddler beds. This exceptional Mattress carries a notable15 year warranty against defects in workmanship and meets the Federal Flammability Standard 16CFR 1632 and the California Home Furnishings Technical Bulletin 603 and is phthalate and lead free.