Jasper Suite 11" Pillowtop Mattress The Jasper Suite Mattress was designed for 1 or more people who need a mattress to help relieve pressure, provide posture support, and want a great deal on a pillow top mattress. The Jasper suite is perfect for Side Sleepers because of its pressure relieving components . It is perfect for back sleepers because of it’s posture components (High Coil, Continuous System*). The Jasper Suite is rated Medium-Firm feel, and is optimized towards back and side sleepers, it will work for stomach sleepers who don't mind a slightly softer feel.