Get a replacement or extra Pad for the Organic Breathable 2-Stage Baby Crib Mattress. This layer combines breathability and waterproofing for a safer, healthier and more hygienic design. The Pad features a soft organic cotton surface and a 3-dimensional polyester lattice structure that creates a breathable space under the baby for increased airflow. This results in improved temperature regulation for less sweaty backs and a reduced risk of overheating. It also allows the baby to breathe directly through the breathable Pad if necessary. Additionally, the Pad also features a waterproof backing which protects the mattress from urine, spit-up, and other messes, making crib changes easy. Get all the safety and comfort benefits of a breathable mattress with the convenience and practicality of a removable and washable layer. Fits standard size cribs ; Only use when properly secured around mattress corners ; Top Fabric: Organic Cotton ; Bottom Fabric: Polyester ; Waterproofing: GOTS approved polyurethane barrier ; Sewn and finished in the U.S.A. with imported fabric ;.