TEMPUR-Sense medium-hybrid mattress pairs premium spring coils with our original TEMPUR® support layerHybrid Technology 1000+ premium spring coils designed in-house to work with TEMPUR material.Original TEMPUR® Support Layer Advanced adaptability that automatically responds to your body temperature, weight and shapeTEMPUR-ES® Material Slip into a cushioning sleep with softer top layers of TEMPUR material.Cool-To-The-Touch phase change material just beneath the cover draws heat away from the body