ERGONOMIC KING TOPPER THAT STAYS IN PLACE - Dormeo’s king bed topper conforms to your body’s natural contour for pressure-relieving, balanced support. Our Octaspring king mattress topper has an anti-slip bottom which keeps the topper in place. 3-ZONE SUPPORT - Our 3 inch mattress topper uniformly supports your head and shoulder areas while providing pressure-relieving support for hip and spine alignment. This king mattress topper is perfect for side, back, and stomach sleepers. COOLING MATTRESS TOPPER - Our king size mattress topper uses Octaspring Technology that circulates cool air and allows hot, humid air to escape. This cooling mattress topper adapts to your body’s temperature for a cool comfortable rest.