Brand new ergonomic sleep technology. Working with orthopaedic scientists and using various anthropometric studios, Sealy have created the first mattress that's proportionately shaped to the human anatomy. Its directionally and variably zoned 660 PostureTech Response spring system provides varied levels of tension for outstanding support in key areas. It also means this mattress doesn't have to be rotated or flipped ever, making it the only mattress we offer in the field. Offering exactly the right kind of support to shoulders and hips, the Pearl Contour reduces strain at pressure points to dramatically reduce tossing and turning. Great for back pain sufferers, an increased lumbar support region ensures that spinal alignment it exactly right throughout the night.