8 Inch Soft Sleeper 5.5 Twin Mattress With 4 Inch Visco Elastic Memory Foam Plus Memory Foam Pillow Made From 100% Visco Elastic Memory Foam Assembly required. Two separate layers of foam and removable expandable mattress pad cover. 4" layer of Soft Sleeper Superior Support Foam for spinal alignment and transitional support. 4" layer of Soft Sleeper 5.5 Visco Elastic Memory Foam, and a removable, washable, Expand-A-Cover This luxurious visco memory foam material reacts to your body temperature reducing pressure points. 100 NIGHT SLEEP TRIAL! 10 Year Soft Sleeper Manufacturer Limited Warranty! Visco Elastic Memory Foam