Mattress Sealy® Grace The Grace mattress will reward you with a peaceful and enjoyable sleep! Made with the most premium quality materials and Posturepedic® technology, it achieves the right level of support for every part of the body, thus offering comfort to the entire body. Also, the Surface-Guard™ & MoistureProtect™ mattress cover is specially designed to draw moisture away from the body while the built-in Response Pro™ Encased Coil System, a durable system of individually wrapped coils helps reduce motion transfer and offers more targeted support.