Created with layers of foam, the Primo International Lexis 10 in. Gel Memory Foam Mattress will contour to your body for comfort and support. This mattress features a base layer of high-density polyfoam that's topped with water-based, gel-infused memory foam. It provides pressure relief, disperses heat, and reduces motion transfer for a restful sleep. It's surrounded with a 100% polyester knit zippered cover.