system
A chat on subreddit /r/me_irl
human
I’m about to get my CPAP machine. How long after do you notice a difference? Do you wake up on the first day fully rested and feel totally different/better or does it take some time?
gpt
Most people have a hard time sleeping through the night with the mask on the first week or two. Once you can sleep the whole night without removing it you can feel almost immediate differences. The big thing is that you feel rested most of the day.  Memory takes a few weeks to improve, but mental clarity improves right away.