Check the listing for details. Dormeo Mattress Topper - White (30004-1050). Color: White, Condition: New with tags. Listed at 279.00 USD. Dormeo Mattress Topper - Relieving Octaspring Technology Bed Cooling Mattress Topper - 3 inchall sizesERGONOMIC 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.BREATHABLE TOPPER WITH SMART COVER - Our king mattress topper is created with aero-space technology that is 8x more breathable than traditional memory foam. Its washable cover is made with hundreds of comfort pockets for optimum air circulation.SLEEP SATISFACTION - Dormeo listens. Our research labs develop innovative high-quality unique sleep solutions in response to our customers’ needs. Our US-based Customer Care team helped Dormeo earn its A+ rating with the Better Business Bureau by picking up the phone within 2 minutes to help our customers.