The Copper Harbor offers a firm, supportive feel for sleepers who want consistent comfort night after night. It features our QuadCore® pocketed coil system with TrueEdge360™ support, providing stable, edge-to-edge support that contours to each sleeper’s body and promotes proper spinal alignment. Combined with high-quality comfort foams, the Copper Harbor delivers reliable support with a firm, balanced surface that keeps you properly aligned while maintaining long-lasting durability. Its consistent performance makes it one of the most popular models in our Signature collection.