Massage units are attached directly to each of your Dual King Supreme's baseboards for a far better and far deeper massage than other massage systems. And due to the dual king configuration, each person will get to adjust their massage settings independently. The Dual King Supreme features independent head and foot adjustments for each user. The adjustments are driven by a low voltage, whisper quiet motor system. The Dual King Supreme also includes heavy-duty casters, backboard brackets, wood trim skirting, hypoallergenic fabrics, and a battery backup. And every Dual King Supreme is hand-built in the USA. Premium mattresses top each side of your GoldenRest Dual King Supreme. Their no-flip layered construction starts with heavy-duty 13 gauge steel coils. The mattresses also have edge guards for protection against wear and a soft ivory ticking. less more