A good night's sleep is crucial, especially for growing babies and toddlers. The Organic Cotton Fitted Crib Breathable Mattress Pad by Naturepedic combines comfort, sustainability, and safety with an innovative design and high-quality materials. The mattress pad is comprised of organic cotton fiber over a breathable layer of mesh. Designed to maximize airflow between your little one and the mattress to keep baby cool and comfortable to limit the risk of overheating. Designed for use with standard size waterproof crib mattresses.