This mattress reverses from a waterproof side to a plush, quilted side to adjust to your child's needs over time, providing a comfortable sleep environment. The heavy-duty orthopedic innerspring and firm, flat surface provide ideal support in accordance with Consumer Product Safety Commission (CPSC) recommendations, and the mattress is made to fit all standard crib and toddler beds. 28" x 52"' x 6" Polyethylene food-grade waterproof coating Dust mite/bed bug barrier Free of wool, latex, PVC, phthalates, antimony, brominated or chlorinated fire retardants Organic cotton Wipe clean Made in the USA Kids' Wear Certified by GREENGUARD® Global Organic Textile Standard (GOTS)-certified—a strict certification standard that covers the processing, manufacturing, packaging, labeling, trading and distribution of all textiles made from at least 70% certified-organic natural fibers