The Babyletto Pure Core Mattress with Smart Cover offers sleep as pure and sweet as your baby. PURE by Babyletto crib mattress bundles contain only the purest ingredients for the safest sleep space possible. Provide a healthy sleep environment for your baby with a non-toxic polyester PURE Core crib mattress and breathable water repellant SMART cover. This vegan non-toxic mattress is free of polyurethane foam, "soy" foam, vinyl, PVC, chemical flame retardants, dyes, allergens, phthalates, PFCs, synthetic latex, and off-gassing materials. This mattress bundle includes two pieces: a double-sided PURE Core mattress core and a breathable water repellant SMART cover.