Sleep Innovations Taylor 12-inch Gel Swirl Memory Foam Mattress, Queen Price:  $558.57 (as of 18/10/2017 12:15 PST- Details)

Top layer: 2 inches of gel memory foam for gentle cradling and the optimal sleep temperature
Middle layer: 2 inches of air channel foam for enhanced airflow and customized support
Bottom layer: 8 inches of support foam for stability and durability