Remain cool and dry the whole night through using this Bedgear Dri-Tec Performance mattress protector on your king mattress. Featuring a new hexagonal pattern on the Dri-Tec fabric, this bed cover keeps moisture and heat away from your sleeping body. A flexible surface allows the protector to shift and adjust with your movements so you don't feel stuck in bed. Meanwhile, the high-stretch skirt fits beds up to 18 inches high. Finally, the waterproof triple-layer protection saves your mattress from water spills, stains and allergens.