My CPAP dying is one of my nightmares. I have had this unit a long time. I would have to dig around for the paperwork to find the pressure prescription, which might need an update. I am so conditioned to it that it would be hard to sleep without it, though I have fallen asleep without it just napping. I have not been tested weighing as little as I do now though. I am around 170, still losing but probably won't go below 160 (maybe a little, just to see it on the scale ). My previous tests were at around 200 and around 185 and came out about the same, so it may not be weight related.