King 76”x 80”x 12”Revive Gel Memory Foam Collection has been designed using our advanced Gel technology that Sleeps Cool to maintain balanced body temperature. Combining the benefits of gel with our ventilated, open-cell design, Revive gel memory foam is 8 times more breathable than other nationally advertised memory foam products. It is also more supportive, as millions of Gel beads gather in areas that need it most for additional support and personalized pressure relief, creating cooler, better, more supportive sleep. Revive mattress is made using high-density Certipur Certified for no harmful chemicals. The superior durability of this high-quality design is backed by our industry leading 25yr Warranty.