... cutting memory foam, D40-D100,H:5-8cm Cover:velvet, terry, and air layer CA117&BS5852 available,compress package Item NameMemory Foam ... PE bag,PVC-Nonwoven bag InstructionsTo increase the comfort of your existing mattress we offer a 5cm to 10cm overlayed topper ... joints rest in a natural positionWhen you sleep on a memory foam mattress, your spine and joints rest in their natural positions. ...