I've been spending nights in the hospital for a few years, now. The only option that Duke offers for sleeping guests of patients (at least in our experience) are the reclining chairs. I've "slept" many nights in these chairs, but they have always killed my back and left me exhausted.
I am currently sleeping at the hospital about 2 out of every 3 nights, and, about a month ago, I finally got smart and went to REI and bought a $30 cot and a $10 egg crate foam mattress topper...best $40 I've ever spent (except for Tricia's engagement ring...haha, just kidding).
If the chair was a 3 out of 10 on the comfortable sleeping scale, the cot + foam is only about a 5, but the difference between a 3 and a 5 is incredible when you're basically living in a hospital.
Anyway, I just thought I'd share that, especially for those of you who may have a need for such information at some point.
PS. The cot is aluminum, so it's extremely light and very easy to set up and tear down every day.