Comfort Our iCoil system is made of hundreds of independent coils providing customized support for every inch of your body while minimizing motion transfer for uninterrupted sleep. The pillow top is formed with a 1-inch layer of super soft foam, on top of another 1.5" layer of super soft foam and a 0.5" layer of high-density foam. The support for the mattress then comes from the 7.5" iCoil system. The 10-inch spring mattress offers exceptional comfort and support, keeping you aligned and pressure free for a great nights sleep. Order today and try it for yourself. Environment Sleep Master embraces the idea of "Sleep Green", the comfort of your sleep environment is balanced with ingredients that are safer for you and the environment. We use Bio Foam in all our mattresses, made with natural seed oil this minimizes the use of petrol based chemical oils. Additionally, all of our mattresses are CertiPUR-US certified. You can rest assured knowing that your mattress has gone through the most rigorous and comprehensive testing in the industry. Innovation The Bi-Fold box spring was designed for mobility and functionality. Traditional box springs are hard to maneuver through your home and often scrape walls and doors. The Bi-Fold box spring ships in a box and the setup is easy, simply unfold the box spring and lay your mattress on top. A non-skid fabric on top keeps you mattress in place so that you don't have to worry about constantly re-adjusting your mattress. No tools are required for assembly. Warranty We strive to help everyone experience a rejuvenating and relaxing night of sleep. We want you to love your mattress so back all our products with a limited 5-year warranty. Please leave a review and let us know about your experience with our products.