The all new Sealy 52121630 Twin Cushion Firm Euro Pillowtop Sealy Manuscript features Sealys exclusive Posturepedic Technology™ targets the heaviest part of your body, with reinforced support where you need it most. Only Posturepedic Technologys zoned support gives you deep, targeted support for exceptional all-over comfort. Another feature is the Response Pro Encased Coil System which is a Barrel-shape coils with dual-stage design to ensure you get the right support, where you need it. Encased to allow each coil to move independently, for more targeted support and reduced motion transfer. Also has the DuraFlex™ Edge System which is a High-density, flexible coil border surrounding the mattress for better edge support, more usable sleeping surface and improved durability.