The Naturepedic Organic Ultra Breathable 2-Stage Crib Mattress offers the finest in organic luxury with added safety features to give parents peace of mind. Elevated with a cozy quilted finish, the Ultra Breathable is the premiere product in Naturepedic's lineup of the only breathable, waterproof and certified organic mattresses on the market. It features a firmer side for infants and a medium-firm side for growing toddlers. Certified organic and non-toxic, Naturepedic mattresses are made without flame retardants, formaldehyde, polyurethane foam or other questionable chemicals. When you choose a Naturepedic organic crib mattress, you're choosing Safe Healthy Sleep™ for your baby.