The Graco Premium Foam Crib and Toddler Bed Mattress is the ideal firmness for infant safety, and is made of high-quality, breathable foam that maximizes air flow. Featuring a water-resistant, removable, hand-washable outer cover, this mattress is easy for parents to keep clean and refreshed. This Graco mattress is GREENGUARD Gold certified, free of prohibited phthalates, lead, and mercury, and meets all applicable federal flammability standards.Graco Premium Foam Crib and Toddler Mattress in a Box . GREENGUARD Gold Certified, Non-Toxic, Breathable, Removable Washable Water Resistant Outer Cover.