I have the cpap machine as well but I move around at night. Not sure why your hoses are too short? Can you get longer ones?
What I like to do is lay down with most lights out, get my ereader, find a book I have read before, snuggle in and read for a few pages and wake up the next morning. For a long time I had bad insomnia so it wasnt really that easy to find a routine that worked for me. If it is really bad I make up a dream and start 'predreaming' it. That not only puts me to sleep it helps get rid of nightmares.
You have a lot of stresses in your life, especially lately, so its not really the sleep that is eluding you, I would guess. Its the ability to relax and stop worrying. Time to just trust in God that things will work out and let Him take that weight off your shoulders.