Naturepedic No-Compromise Organic Cotton Mattress - Organic cotton filling (no polyurethane foam or latex), Nontoxic waterproofing (no vinyl/PVC), Nontoxic fire protection (no PBDEs, etc.), Firm construction with 252 coil reinforced innerspring, Nonallergenic materials (no latex or wool). Certified by GREENGUARD, Recommended by "Healthy Child Healthy World".