The exclusive Charter Club by Sealy Blissful Bay 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 layers of Perpetua copper latex and gel foams offer pressure relief and comfort. A stretch knit cover with cooling fibers and Lurex metallic thread accents helps you sleep better.