Listen. Waterbeds were the thing to have in the 80s and 90s. If you weren't sleeping on a giant water balloon, what were you doing?
Probably the craziest thing about waterbeds is that they were invented in 1968 as a thesis project. Charles Hall created one while he was in design school as his Master's thesis, and since then he's never turned back.
"In each house I have a water bed," he said. "And you know what? I wouldn’t sleep on anything else. They are the most comfortable bed around."
"Each house" tells me he's a kajillionaire thanks to his jiggly invention.
Hall had set out to find a way to improve human comfort while sleeping, so he contacted doctors and physical therapists to get some ideas. He also patented the idea, because he clearly was not stupid.
The San Francisco State University magazine did a piece on Hall where we got to learn the original name of the waterbed, and it's glorious.