The No-Compromise Organic Cotton Ultra is simply the healthiest mattress available. It is waterproof, firm and eliminates potentially harmful chemicals from your mattress. The Naturepedic mattress has an organic cotton filling which is unbleached, un dyed, and grown without synthetic pesticides, herbicides, or chemical fertilizers. The optional Organic Cotton Waterproof Mattress Pad and Non Waterproof Organic Cotton Flannel Mattress Pad are soft and breathable mattress pads that provide a non-swe aty and comfortable barrier. These pads in combination with the No-Compromise Ultra Organic Mattress will help bring sweet dreams to your child. Features: -Organic cotton fabric with an easy-to-clean 100% polyethylene coating -No wool or latex -Heavy -duty orthopedic innerspring -Exclusive FlameBreaker fire protection -Dust mite barrier cover -Meets and exceeds all federal and state flammability standards -iParenting media award winner -Made in the U.S.A Specifications: -Crib mattress dimensions: 252 Coils: 6" H x 27.75" W x 52" D - Crib mattress also fits toddler bed -Flat changing table waterproof pad dimensions - 15" W x 30" D -Crib waterproof pad dimensions: 28" W x 52" D with corner straps -Twin waterproof pad dimensions: 38" W x 75" D with corner straps -Full waterproof pad dimensions: 53" W x 75" D with corner straps -Queen waterproof pad dimensions: 60" W x 80" D with corner straps -Flat changing table flannel pad: 18" W x 28" D -Crib dimensions flannel pad: 28" W x 52" D with c orner straps -Twin dimensions flannel pad: 38" W x 76" D with corner straps -Full dimensions flannel pad: 50" W x 76" D with corner strap