The Organic Breathable 2-Stage Baby Crib Mattress combines breathability and waterproofing for a safe, healthy and hygienic crib mattress design. The mattress starts with a firm, flat waterproof surface made from non-GMO sugarcane that is so pure, it actually meets food contact standards and easily wipes clean. This approach protects the inside of the mattress from urine, spit-up, and other messes. We then add a 3-dimensional cover with a soft organic cotton surface for increased airflow. This unique cover creates a breathable space under the baby which improves temperature regulation and allows the baby to breathe directly through the sleep surface if necessary. The cover also features a waterproof backing which eliminates the need for an additional waterproof pad. Finally, the flexible 2-stage design allows the mattress to grow with your child for years to come. Features organic cotton fabric & filling throughout and passes all federal and state flammability standards without any fire retardant chemicals or flame barriers whatsoever. Get all the safety features you need, including breathability, while maintaining a healthy, hygienic, organic crib mattress design.