Go botanical and enjoy the multiple benefits of TENCEL® on one of our most popular memory foam mattresses. The Tranquillium, previously named Tranquility, is an American-made mattress for those who want the pressure relieving qualities memory foam is known for, but prefer a firm and supportive feel. Our CoolRest gel advanced memory foam quickly conforms to your body for pressure relief and support without letting you sink too far into the mattress. The TENCEL® cover is a performance fabric like no other, absorbing moisture completely and naturally, creating a cooler and more comfortable sleep. With more breathability than cotton, and a softer hand than silk, TENCEL® can be found anywhere from athletic wear to luxurious bedding. Nothing is dreamier than going to sleep on a bed made with TENCEL® fibers. As part of our Performance Series, the Tranquillium is packed with even more TENCEL® for all these amazing benefits!