Beautyrest Harmony features exciting new innovations in support, comfort, and cooling working together in harmony to unlock your best sleep. The new support system features a patented dual-stage coil design to provide additional support under heavier compression. Positioned within the center of the mattress, this new coil provides support where you need it most. Each new Harmony mattress also features natural cooling via eco-friendly TENCEL fabric. Lastly, you can sleep easier knowing every Harmony mattress features Antimicrobial Mattress Protection, keeping your mattress fresh and clean from odor causing bacteria.