The Milton Green Stars 13 in. Blue Gel Pillow Top Memory Foam Mattress cushions your body in incredible comfort while keeping you cool, comforted, and cozy from the moment you close your eyes until you wake up refreshed in the morning. This medium-comfort mattress is available in your choice of size and is constructed of 10 inches of high-density polyurethane foam that conforms to your weight and pressure. Sitting atop of polyurethane base is two inches of deluxe memory foam and a one-inch layer of blue gel-infused memory foam to help regulate body temperature, creating the perfect pillow top to cradle you in comfort all night. An included polyester outer cover protects the mattress and provides an extra layer of comfort between the mattress and your sheets, while protecting the mattress from dust mites and allergens.