The Crib Mattress is an excellent lightweight infant and toddler baby mattress for your baby, and a perfect fit for your favorite crib or toddler bed. It's perfect for newborns and infants so they will have a secure, flat surface that pediatricians recommend. The cover is a reinforced, breathable waterproof surface that wipes clean easily with a damp cloth or mild soap and water. This cover acts as a moisture barrier to keep messy liquids from seeping inside the mattress, helping to prevent mold, mildew and odors. A protective cotton wrap encircles the mattress for extra cushioning all around and side-sleeping toddlers will feel cozy on this mattress.