Comfort When purchasing a mattress one of the most important things to consider is comfort. You will spend around a third of your life sleeping. The quality of your sleep can affect every area of your life, let us help you get your best nights sleep. It all starts with a 4.5" inch layer of high-density foam to provide you supreme support. While a 1.5" top layer of premium memory foam contours to your body cradling you while you sleep for ultimate comfort. Scent Memory foam mattresses are often associated with having a distinct odor. All our Sleep Master foam mattresses are infused with Evergreen and ActivCharcol. Evergreen is a green tea extract that naturally neutralizes odors from day one, while ActivCharcoal is made from purified charcoal that absorbs moisture minimizing odor-causing agents. 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. Warranty We strive to help everyone experience a rejuvenating and relaxing night of sleep. We want you to love your mattress and back all our products with a limited 5-year warranty. Please leave a review and let us know about your experience with our products. "Please note that some packages may be branded Zinus, Inc., which is the manufacturer of all Sleep master products."