Luxury at a Great Price This mattress is pure luxury at a price that makes sense. The 12-inch thick mattress features a 3-inch layer of gel-infused memory foam, a 1-inch layer of bamboo charcoal memory, and an 8-inch high-density foam base. The Feel We combined a 2.5-inch layer of ventilated gel memory foam and a 7.5-inch layer of high density support foam for a pressure-relieving and supportive mattress with a medium feel. Gel Memory Foam Infused with heat-capturing gel material, the top memory foam layer is designed to prevent heat build-up. Microscopic gel beads capture heat and move it away from the body to help regulate .