The FDW Twin 5 Twin 5 Inch Medium-Firm Gel Memory Foam Mattress, CertiPUR-US Certified, in a Box, Pressure Relief is designed to provide restful, uninterrupted sleep night after night. At 5 inches, the mattress balances presence and proportion. Its memory foam build provides a sturdy, long-lasting foundation. Its sleeper mechanism gives you the flexibility to fine-tune positioning on the fly. Backed by FDW quality, it is ready to provide reliable rest for years to come. Gel Mattresses Furniture