I tried to use a CPAP 15 years ago but it didn't work for me because of the noise and the fact that I had long hair and it felt like i was trapped in it and it was difficult to get it all right so i felt comfortable going to sleep.

a few years ago I got another one, and didn't like it at first. Turned out that I needed the mask that covers my nose and mouth because I am a mouth breather. Getting a different mask made a big difference.