Serta Perfect Sleeper X - Kendall 13" Medium Hybrid King Mattress | CertiPUR-US certified, 10 Year Limited Warranty, 100-Night Trial, Made in the USA with global components, cooling tech

Support. This king size mattress features Serta's 5 Zone Active Design, combining five zones of coils and contouring memory foam to offer comfort and support where you need it most for full-body spinal alignment

Certified. All Serta Perfect Sleeper mattresses feature a 100 Night Trial, a 10-Year Limited Warranty, and CertiPUR-US certified foams free of harmful chemicals, so you can rest easy; Plus, all mattresses are compatible with adjustable bases

Medium Feel. This king mattress hybrid offers balanced comfort that supports side, back, stomach, and combination sleepers; This smooth top hybrid mattress is not compressed into a smaller box and is Assembled in the USA

Cooling. This cooling mattress has a layer of graphite-infused memory foam and Cool Twist Gel memory foam with cooling gel swirled into premium memory foam for enhanced airflow, heat dissipation, and contouring comfort

Pressure Relief. Serta's premium Perfect Conform memory foam in this king mattress is graphite-infused and designed not only to provide targeted pressure