Relieve pressure points as you rest with the targeted support of Beautyrest's Harmony Coastal Medium Firm Mattress, maintaining as ideal sleep temperature throughout the night.  Sustainable, cooling, and comforting, a luxurious Seaqual fabric cover promotes cleaner oceans, while the innovative NaturalCool cover with Tencel yarn keeps the mattress fresh and cool at the surface.  Flawlessly contouring to your body-AirCool foam, plush comfort foam, and gel memory foam alleviate pressure-induced aches and pains, allow high airflow, an exceptional breathability.  The T1 Pocketed Coil innerspring unity and foam-encased perimeter stabilize the sleep surface to each edge and ensure that your body receives proper support at the center where it's needed most.