Thanks to everyone for the replies. I went to the sleep center Monday night for my titration. I used the nasal mask. I woke up feeling refreshed despite the center waking me at 5 am to discharge me. My results showed the number of AHI(i think that is what is was called went from 43.5 to 8) i woke up feeling refreshed. I received a message from the NP today saying she reviewed the results and ordered an auto pap machine for me. She said i should hear from the DME dept. in a couple of weeks. I have to say I am looking forward to getting started with it.