Charlie Hall invented the waterbed in 1968, just after the "Summer of Love," and started what became a $2 billion industry. The water-filled mattress earned a provocative reputation throughout its heyday in the '70s and '80s. But Hall intended for waterbeds to help people get better sleep, although research on the health benefits have been inconclusive. Hall's new company, Hall Flotation, aims to bring them back, emphasizing the comfort of a "wave-suppression system." Visit Business Insider's homepage for more stories. Following is a transcript of the video.