Twin Hybrid Mattress 12 Inch GelMemory Foam ComfortSleep cooler, deeper, and more supported with the Twin Hybrid Mattress a 12 inch hybrid that pairs gel memory foam with individually wrapped pocket springs for a luxurious, restorative nights sleep. Built for proper alignment and all night comfort, the 7 zone support design targets shoulders, hips, and legs to keep your spine in its natural curve, while the responsive springs quickly rebound to relieve pressure points. 12 inch hybrid construction