The Dream On Me Firm Foam Crib and Toddler bed mattress is the answer to your baby's restful sleep. With six inches of firm foam at its core, this mattress is constructed of flame retardant, antibacterial, hypoallergenic quality materials that aids in the prevention of mold, mildew, and odor. Its waterproof cover wipes clean with warm water and mild soap. Lead and phthalate tested; this mattress passes the Federal Standard Flammability Standard 16 CFR 1633.