the doc can give you the monitor to wear at home for the night. you bring the monitor in and they decipher the info.
i got the machine but i gave it back because it was just too much of a pain in the ass. i quit drinking so much and now i sleep better.
ETA: as for the info from previous posters. the lady who came to set mine up came to my office and took 15 minutes of my day. the only real setup is showing where the water goes and fitment of the head and nostril pieces. she also showed me how to clean it.
This post was edited on 10/29 at 12:03 pm