Errr...BEDSORES!! Discuss....
Whilst being an entertaining flick, there are many snags and flaws. i think many of them have already been covered, So I wont drone on about them.
But there is one main thing that bugs me: All the users/hosts would very quickly get bed-sores from laying down on a fairly hard looking couch all the time. These would become infected and would turn nasty. Patients who are immobile in hospitals require turning and padding with pillows, very frequently. Without this sort of care, sores and ulcers would quickly ensue. I wish they had covered this snag.