One of the local hospitals here got new beds like 2 years ago..
I got to experience one when I had my knee surgery in 2013.
Just waking up from surgery doped out of my mind...
And the bed starts moving underneath me all over the place..freaked out a bit.. "WTF WAS THAT? WHAT IS MOVING?!" while the nurse was there.. She explained they had gotten new beds that move the patients to help prevent bed sores..
They're on a programmed timer to move around the patient every 30-60 minutes or as desired. And then gloated that the new beds cost $10K each.. and most of the hospital now has them.. (BIG hospital)
It's called Low Air Loss Mattress. Used for wound management