Sleep cooler and wake up refreshed on this 10-inch king gel memory foam mattress. A 3-inch gel-infused comfort layer draws heat away from your body while contouring to your shoulders, hips, and back. Beneath it, 7 inches of high-density support foam keeps your spine aligned and prevents that sinking feeling. The medium-firm feel strikes the right balance for back, side, and combination sleepers. CertiPUR-US certified foams mean no harmful chemicals or off-gassing worries. The zippered removable cover is machine washable, making maintenance simple. Shipped compressed in a box for easy delivery through doorways and up stairs.