The Medium Firm Quantum Coil Tight Top Mattress combines advanced cooling technology with durable support for a refreshing night’s sleep. Built with an 800 Quantum Edge Pocket Coil system, it delivers balanced comfort and stability across the entire surface, reinforced by a full lumbar support pad for targeted back alignment. The CoolMax double jersey stretch fabric, crafted from a blend of 50% cooling gel and 50% polyester yarn, quickly dissipates heat for a cooler, more comfortable sleep environment. Layers of 1½” medium-hard foam with 20 oz poly fiber, a tack-and-jump diamond quilted top, 1” medium-hard bio foam, and 1” high-density soy foam base provide the ideal mix of cushioning and durability. Finished with a designer cross-edge tape and ½” quilted border, this mattress offers both style and long-lasting performance for a cool, supportive, and restful sleep every night.