Naturepedic Organic Cotton Ultra 252 Seamless 2-Stage Baby Crib & Toddler Mattress (MC42) OVERVIEW The Naturepedic Organic Cotton Ultra 252 Seamless 2-Stage will grow with your child for many years while providing a more natural, healthy and comfortable sleep environment. With a stronger more luxurious organic cotton cover, seamless waterproof edges, 2-stage dual firmness, 252 coils, edge support, organic cotton throughout, and a firm easy-to-clean non-toxic waterproof surface, the Organic Cotton Ultra 252 is an excellent choice for parents seeking to eliminate potentially harmful chemicals and allergens. Winner of numerous awards and prestigious endorsements, Naturepedic organic crib mattresses are simply the healthiest available. SURFACE/FINISH Luxurious and extra strong organic cotton fabric with wipe clean waterproof surface so pure it meets food contact standards. Waterproof seams prevent moisture penetration and allow for easier cleaning. FILLING MATERIAL U.S. grown and certified organic cotton SUPPORT Firm and comfortable 252 coils plus edge support. 2-Stage dual firmness provides firmer side for infants and softer side for toddlers. DIMENSIONS Measures 27.75” x 52” x 6”. Square corners for a snug fit. ADDITIONAL FEATURES Safe hypoallergenic design free from harmful chemicals Lifetime limited warranty Made in the U.S.A. Tested for Chemical Emissions This product has been tested for chemical emissions and is certified to the GREENGUARD® "Children & Schools" and "Select" standards. Certified Organic Not only is the organic cotton fabric and filling certified, but the finished mattress is certified as well. This ensures that all components meet a healthy non-toxic standard and are free from harmful chemicals. Certified by OTCO to the Global Organic Textile Standard (GOTS). Buy the best for your baby. Buy Naturepedic.