> Treatment with CPAP is highly effective in eliminating these symptoms

… for those who tolerate it. Numbers are all over the place, but roughly people who start it are only 50% likely to still be using it properly after a year.

That seems -- quite high actually?

I don’t know but I wonder if people that have insomnia or similar difficulty falling asleep (anxiety, etc) struggle with a CPAP. I am fortunate to fall asleep very easily, usually within 3-5 minutes or even faster. And I use a CPAP (nose saddles not a full mask), and prefer it to not using one while sleeping. The way it just opens all passageways is relaxing and I think helps fall asleep even more quickly.