Want to know how well your relatives slept when visiting? Maybe send them a blast from the past? Apparently it was not horrible, I tried it, i have a vroken back, its better than an air mattres. My aunt was the only one who used it when she visited. Maybe 12 nights spent on it total.
1970s foldable cot w cusion. All aluminum, springs, very well kept! My parents were not ocd at all!