The Otis Zone 1 is the most exclusive pressure management zone mattress. Made with Viscoelastic temperature-sensitive foams and quad-density latex-like foams, the Sleep Zone 1 Mattress provides a pressure-relaxing sleep that conforms to your body. The soft support of this mattress promotes vital circulation throughout your body so you can rest peacefully, giving you a deeper sleep. This mattress is covered with Belgian damask for durable natural comfort.All Otis products have a 10-year warranty protecting against workmanship or material defects, which covers costs associated with repair or replacement. Contact 800-588-OTIS(6847) with questions.Sound Sleep GuaranteeOur Sound Sleep Guarantee lets you try out your new mattress and make sure you found the perfect one. Give your new mattress a try for 21 days - that's about how long a new mattress takes to conform to your body and for you to get used to it. If after the first 21 days and up to the first 100 days after delivery you decide the mattress isn't for you, call us at 866-530-4157 and we'll come pick up the old one and exchange it for a different mattress for you. Here are the details: The Sound Sleep Guarantee applies only to the following brands: Laura Ashley, iMattress, King Koil, Sealy, Serta, Simmons, and Stearns & Foster. All other mattress brands cannot be returned.Pick-up and exchange is one time only per customer.A processing and pick-up fee of $99 is required.If you choose a new mattress with a higher price than the one we're picking up, you'll need to pay the difference.We are unable to accept returns or cancellations; only exchanges.Valid only within the 48 contiguous states.