Naturepedic organic baby crib mattresses feature organic cotton fabric & filling as part of a healthy, non-toxic design. Naturepedic avoids the use of latex and wool for a more allergen-friendly design specifically for babies and children. Our innovative construction also passes all Federal and State flammability standards without the use of ANY fire retardant chemicals or flame retardant barriers. In addition to using certified organic components, the entire finished mattress is also certified organic as well. We are proud to offer a lifetime limited warranty on all our Naturepedic crib mattresses, including both lightweight and innerspring options.