This Firm sleep mattress from Sealy Posturepedic offers more than just a place to sleep. It's a place to laugh, play and dream, while taking the support you need for restorative rest to a new level. Sealy Posturepedic is the only mattress that features the CoreSupport Center. The center third of the mattress (the area that gets the most use) is power-packed to enhance support and resist body impressions so your mattress feels as good after ten years as it did the day you brought it home. Plus, a layer of Memory Foam enhances the luxurious feel. With superior comfort and durability, the Titanium DSi dual-stage independent coil innerspring system offers the latest advancement in coil design. The DS is the only single coil innerspring that gives you dual-stage conforming support on the surface and deep-down support underneath. The SitRight Edge System ensures a solid seating edge and optimal flexibility for use on adjustable base foundation systems. It increases the usable sleep surface, reduces bounciness, improves support and enhances stability, rewarding you with longer, uninterrupted sleep. The StayTight Foundation, with its rubberized gripper fabric, holds the mattress in place and keeps your sheets and bed skirt right where they belong. Unique LiftRight Surround Handles provide easy gripping access with their wrap-around design, including the corner of the mattress, making everything from moving the bed to changing the sheets easier than ever. Whatever you do in bed, Sealy supports it.