From core to cover, Avocado's crib mattress is crafted from organic materials for a healthy night's sleep. Inside, a coconut fiber pad and 242 individually wrapped innerspring coils create an airy yet supportive base. The pad is topped with a layer of organic wool and wrapped in organic cotton for cool, breathable comfort even on warm nights. The mattress is lightweighteasier sheet changes!and contains no added polyurethane foams, vinyl, flame retardants or waterproofing chemicals.