I was reading a novel and in the story it mentions a bed alarm (in a hospital type setting) that goes off when a patient needs to be turned. I assume it is set on a timer for every 2 hours, when the 2 hours are up, chimes go off.I've never heard of such a thing and I've been a CNA for more than 20yrs. Anyone ever hear of such a thing? or was it just something in a novel? If you never worked with something like this, would you think it was a good thing???