Beautyrest Harmony features new innovations in support, comgort and cooling working together in harmony to unlock your best sleep. With a targeted support system powered by T1 Pocketed Coil technology designed to offer additional support where your body needs it the most. The T1 Pocketed Coil is placed within the center of the mattress to power the new support system. This patented dual stage coil design was invented by Beautyrest and provides additional support under heavier compression. It includes a premium memory foam infused with charcoal that provides natural cooling and pressure relief.