It's not BS. That's a very low dose for amitriptyline compared with what's prescribed for depression. It's helped both my wife & I acclimate to our cpaps, and neither of us need/take it anymore. There are a LOT of people with peripheral neuropathy or other types of chronic pain for whom it helps get a good continuous night's sleep (not that it works for everybody - nothing does).

If it really freaks you out, call your doctor and discuss it with him, and if his answers don't satisfy you, ask him for something else instead, but all medications have side effects and bad reviews.

Is it possible you need to adjust your mask? We know that if ours are too tight (which you don't always notice at first) they can wake us up later on, but that usually involves a sore nose, etc.

Or is there something else (event) that's waking you up? Figuring out the reason for waking may lead to a better solution.

Doc