Healthy Support Crib MattressWith the Lullaby Earth Healthy Support Crib Mattress, you and your baby can rest easy. Crafted in the U. S. A. from gentler, food safe materials, this mattress is easy to clean and designed with safety in mind. All Lullaby Earth mattresses are MADE SAFE certified non toxic, which means we don't use polyurethane foam, flame retardants or any of the harmful materials commonly found in crib mattresses because parenting is hard enough without worrying