The Otis Zone 3 Mattress is a plush and soft zone mattress made with pressurized high-density foam. The foam conforms to your body gently, promoting circulation, good support and a healthy sleep. This mattress is covered in natural Belgian damask for durability and easy cleaning, and features tailored edges built to last a lifetime. The exclusive Otis Comfort Lock Cushioning System tensions all the materials inside to develop a specific comfort level that is consistent over the life of the mattress.