The Dream On Me 150 Ultra Coil Inner Spring Crib and Toddler Standard Mattress is designed for comfort and support. Feel confident knowing this mattress is phthalate and lead free and Mattress is proudly constructed of quality materials and workmanship in the USA. The mattress features a protective polyurethane foam wrap on each side that provides a plush sleeping surface in addition to a hypo-allergenic foam Insulating layers for lasting comfort and durability.The waterproof cover, has a lock stitch venting system and wipes clean with mild soap and water. Passes all flammability tests 16 CFR 1633 and also passes phthalate, lead and toxicity tests. All Dream on Me mattresses are GREENGUARD Gold Certified for a healthy indoor environment for your baby.