Venus Waterbed Freeflow Mattress * Freeflow waterbed mattress bladder * Fits inside softside foam cavity * Full-motion comfort * Top fill for convenience in filling, draining or removing excess air * Superior lap seam technology * Durable 18 mil. vinyl thickness * Eco-Friendly vinyl exceeds US and European standards * Assembled in the USA * Not available in Cal King Size. * Beds sold separately. See our assortment of beds. * Bed frames sold separately. See our assortment of bed frames. 0