Naturepedic Lightweight Classic Seamless Crib Mattresss is 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, edge support, and a patented easy-to-clean waterproof surface. This mattress is lightweight for easy sheet changes.