The Kenko Naturest Mattress Topper combines advanced scientific technology with natural materials that are environmentally renewable and help you to enjoy refreshing, healthy sleep. Patent-pending RAM™ (radial-axis magnetism) Technology features spherical neodymium magnets which produce a series of overlapping magnetic fields to enfold and surround you. The physical foundation of the Kenko Naturest Mattress Topper is natural latex rubber — which provides an ideal blend of support and comfort, and is resistant to microbial growth and dust mites. It retains firmness better than polyurethane foam, and wicks away moisture. A natural-fiber cover promotes ventilation, helps to regulate temperature — and offers resistance to flammability without adding the chemicals that some other sleep products require. The surface of specially molded, gradient-density nodules is the final touch, producing a massage effect that helps you sleep soundly and wake refreshed. After you try the Kenko Naturest Mattress Topper, you'll never want to sleep without it.