The Sealy Posturepedic® Holland Hill medium tight top mattress offers superior support that's built to last. The impressive Posturepedic® Support System features Sealy's exclusive PrecisionFit™ Coils, arranged where you need them to help maintain natural body alignment and reduce nagging Bed Aches™. This mattress was also crafted with a Coil Edge design to create a solid seating surface for edge-to-edge support.