The Simmons BeautySleep Foam Pampering Comfort Crib & Toddler Mattress has firm foam that provides ideal support for baby"s rest. Greenguard & Certipur-us certified and has a chemical free cotton wrap. Easy to clean hypoallergenic water resistant vinyl cover repels wetness helping baby stay dry & comfy. Mattress meets or exceeds all federal flammability standards without the use of harmful chemicals. Limited 15 year warranty against defects in materials and workmanship.