The Ghostbed Supreme 12" Firm Twin Extra Long Memory Foam Mattress offers firm, responsive support in a Twin XL profile to keep taller sleepers comfortably aligned. It layers gel memory foam and Ghost Bounce foam with ProCore technology to provide zoned support, delivering 33% more reinforcement where your body needs it most for proper spinal alignment and pressure relief. A Ghost Ice Cover provides twice the cooling power to dissipate heat and help maintain an ideal sleep temperature so you wake feeling refreshed.