The Excelled Plush Mattress from the Serta Perfect Sleeper X Quilted Hybrid collection delivers luxurious comfort and support. Ideal for side sleepers, its plush comfort level and 5 ZoneActive Hybrid Design promote full-body spinal alignment, while layers of graphite-infused and EverCool Supreme Memory Foams cradle you in softness and enhance cooling. At 14.25", it fits deep pocket sheets and is CertiPUR-US certified, adjustable base compatible, and backed by a 10-year warranty. 100% USA-assembled with free delivery for added convenience!