Breathable Crib Mattress Cover Turn any crib mattress breathable! With an organic cotton surface, waterproof backing and machine washable convenience, this breathable cover increases airflow around the baby while making crib changes easy. This layer combines breathability and waterproofing for a safer, healthier and more hygienic design. The cover 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 cover if necessary. Additionally, the cover 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. Great condition aside from one small stain (see pic). Tags: sleep sack, organic sheets, Merlin, Kyte Baby, Ergo, Tula, Happy Baby, Owlet, Land of Nod, DockATot, Woolino