The Naturepedic Organic Breathable Ultra 2-Stage Crib Mattress combines every safety feature you could ever want in one crib mattress. An excellent choice for parents seeking to eliminate potentially harmful chemicals and allergens. Made from organic and non-toxic materials, it will provide a more natural, healthier and comfortable sleep environment. Features include a luxurious organic cotton cover, organic cotton fill, seamless waterproof edges, 2-stage dual firmness, edge support, and a patented easy-to-clean waterproof surface. The breathable layer is removable and washable. This mattress is lightweight for easy sheet changes.