The Restore Plus Firm Twin XL Mattress features a hybrid design with a multi-media construction and a firm comfort level, perfect for a night of restful sleep. Its SoftFlex Stretch Cover with Anti-microbial Fabric Treatment and Purple GelFlex Grid, along with 1.5" Soft Comfort Foam and 8" edge-to-edge Individually Encased coils, provide the ultimate combination of support and comfort.