The exclusive Charter Club by Sealy Restful Retreat Firm Euro Top Mattress features trusted Sealy® quality with an upgraded high coil density Pocketed Spring Support System that has reinforced Steel Quantum Edge® Coils. Its heavy duty pocketed springs reduce movement, allowing for an undisturbed side to side sleep while multiple layers of Perpetua™ Copper Latex and Gel Foams offer pressure relief and comfort, and a stretch knit cover with Cooling Fibers and Lurex® metallic accents to help you sleep better. This Box Euro Top is the ultimate in luxury.