GEOincline Mattress Topper gives you superior support that reduces areas of high pressure providing added comfort. By elevating your upper body while sleeping prevents stomach acids from coming back into your throat protecting the esophagus. Upper body elevation has been recommended to relieve the following: sinus congestion; acid reflux; snoring; sleep apnea; high blood pressure; nighttime heartburn, and hiatal hernias. The breathable patented Ring-of-Air design allows air to circulate through the pad. Three Year Manufacture Warranty. King Size 76" x 80"