This firm, five inch mattress ensures comfort for your infant. Extra firm foam, an insulator pad, and a triple reinforced antibacterial cover are just a few of the many suburb features of the Convoluted Foam Crib Mattress from Dream On Me. Features: -Foam baby mattress. -Insulator pad with two cushioning layers of foam. -Mattress consists of five inches of extra firm foam and 1.5 inches of convoluted soft foam. -Triple laminated reinforced antibacterial cover. -Brass eyelet vents