Tranquility Mattress Set King

The Tranquility Extra Firm Mattress delivers unwavering support and deep restorative comfort for those who prefer a truly firm sleep surface. Standing at 12½ inches high, it features a Safe Slumber FR quilt with layers of Ultra Gel Foam and Firm Foam for a cool, stable feel that maintains shape and structure night after night. Inside, multiple comfort and support zones—including a layer of Luxury Foam, 1¼" of Extra Firm Foam, and a Visco Support Zone—provide reinforced pressure relief and superior spinal alignment. The Encased Pocket Coil system with two rows of steel edge encasement ensures minimized motion transfer and edge-to-edge stability, while the 14½-gauge coils deliver exceptional durability. Finished with a ¾" Firm Support Pad for added strength and backed by a 10-year non-prorated warranty, the Tranquility Mattress offers steadfast comfort and dependable performance designed to last.