Twin Size Mattress 12Inch Fiberglass Free Memory Foam HybridDream deeper sleep with a fiberglass free memory foam hybrid that supports every curve of your body. This twin size mattress pairs responsive pocket springs with premium memory foam to cradle your spine, relieve pressure points, and help you wake refreshed. Designed to cut through motion and promote proper alignment, the independent pocket springs respond to each area of your body while minimizing disturbances. The integrated memory foam adds a plush,