The Babyluxe Soy Foam 2-in-1 Baby Crib Mattress features a specially treated anti-Bacterial, Non-Toxic, Tear And Water Resistant, Triple Laminate Cover. The Baby Luxe Soy Foam Mattress has Air Vents that Help Keep the Mattress Fresh. The Infant Side on the Soy Foam 2 in 1 Mattress is a high density Soy Foam For Extra Firmness. Soy is a bio-based material that is more environmentally friendly and helps reduce greenhouse gas emissions. The Toddler Side features a convoluted foam for superior comfort and support. The Baby Luxe Soy Foam 2 in 1 Mattress truly grows with your child and contains No Phthalates, No Polyurethane Foam, and No Dangerous Fire Retardant Chemicals.