After I use CPAP machine, I wake up next day and my mind is spacey and hard to concentrate. Anybody else experiencing same problem?

there's a machine that has humidifiers that is built into the machine. I have one. ResMed Airsense 10.

I've been using the machine for about a month now and still find it very uncomfortable. How many months/years did it take you to feel really comfortable using the machine to sleep?