I had almost the same experience, except I was moderate sleep apnea rather than severe. I remember being disappointed after the first night with my CPAP because

I had almost the same experience, except I was moderate sleep apnea rather than severe. I remember being disappointed after the first night with my CPAP because I didn't have the "holy cow, I slept so good and I feel amazing and refreshed now" experience that a lot of other CPAP users were reporting. Luckily I stuck with it, and after a few months I had to sleep without the machine for about a week and noticed a massive difference - I felt like hot garbage. The whole week without it I was so tired, had headaches every day, constant brain fog, and it was just hard to sleep in general. Now I'm a big believer in the CPAP machine and happily wear it every night. Bonus: my wife no longer wakes me up every night for snoring ;)