11-inch Eastern King Bed Mattress Gel-Infused Memory Foam Hybrid Mattress, Dark Gray, Mattress in a B011P212567Pocket coils are encased individually to isolate movement and minimize sleep disturbance CertiPUR US certified foam meets the standard for content emissions and durability Comfort level: medium Pocket coil count: 756 Easy set up: cut away the thick plastic warp, unroll the mattress and allow up to 48 hours for mattress to fully expand to its proper shape and size. Fabric Color: Dark gray Fabric Content: Main: 97% polyester, 3% spandex; bottom: 100%