Bear Cub - Kids MattressQuilted Hypoallergenic Cover utilizes cooling Tencel fibers for a soft, breathable sleep surface providing optimal airflow to help sleep through the night. Premium Gel Memory Foam ensures a cooler, more comfortable nights sleep by drawing heat away. The Responsive Foam layer is sturdy and dense to provide spinal support to aid the proper development of younger kids growing bodies. Hundreds of Individual 6 Coils cradle the sleeper and limit motion