The Simmons Beautyrest Beginnings Naturally Restored Comfort Crib & Toddler Mattress has 231 Beautyrest pocketed coil springs for long lasting support. Greenguard & Certipur-us certified. Sleep-4-Years Mattress: one side provides ideal firmness for newborns and the flip side offers a soy layer for toddlers. Reinforced border edge increases stability and Innofoam corner protectors create a sturdier mattress. Breathtakingly soft water resistant natural cotton fabric cover offers soothing comfort. Mattress meets or exceeds all federal flammability standards without the use of harmful chemicals. Limited lifetime warranty against defects in materials and workmanship.