Beautyrest® Harmony features new innovations in support, comfort, and cooling working together in harmony to unlock your best sleep. First, we’ve developed a Targeted Support System™ powered by T1 Pocketed Coil® Technology designed to offer additional support where your body needs it 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.