Turn your mattress into a luxurious sleeping surface with a soft pillow-top and cradling memory foam. The 4" Pillowtop and Memory Foam Mattress Topper features 3-inch layer of memory foam gently supports you while alleviating pressure for soothing sleep. The memory foam layer is topped with one inch of plush pillow-top adding comfort. The included quilted cover with a rubber grip bottom which protects the topper and keeps it in place. The cover is removable and machine washable for easy cleaning. This Serta® mattress topper is the perfect way to upgrade a new mattress or extend the life of an old one.