I was diagnosed about a month ago and got a machine a week ago.  My sleeping since has been awful.  I have to use melatonin to get to sleep at all, then wake up a couple hours later and just lie there listening to the mask and myself breathing.  Does it get easier?  I feel noticeably worse than I did before I got the machine.  Pretty sad to get something that viciously expensive and it just makes your life worse than it was before.  Sorry, I'm just completely bummed out.  I had high hopes for this and now. . .