8 Inch Soft Sleeper 5.5 Queen Mattress Bed Plus Shredded Memory Foam Pillow With 4 Inches Visco Elastic Memory Foam Assembly Required 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.