The Simmons BeautySleep Refreshing Sleep 90 Crib & Toddler Mattress has 90 interlocking coils that provide long lasting support that will last for years. Reinforced border edge increases stability and Innofoam corner protectors create a sturdier mattress. Chemical free cotton wrap and Greenguard certified. 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 7 year warranty against defects in materials and workmanship.