It's the usual reason: insurance company BS. I was diagnosed in the early 2000s, which mostly stopped my snoring, and I felt a little better. I had my second sl

It's the usual reason: insurance company BS. I was diagnosed in the early 2000s, which mostly stopped my snoring, and I felt a little better. I had my second sleep study in the early 2010s, and in that sleep study, they thought they detected signs of central sleep apnea. I had to change sleep doctors because of insurance, and my current one is quite good. He ran a more in-depth study plus looked at the nightly results from my CPAP machine, and from that, he was able to piece together the story about central apnea and high-loop gain periodic breathing. Now that said, if you not getting results, call your sleep Dr. and make sure they take a look at the nightly stats from your CPAP. I'm assuming you have a modern one that reports back to central headquarters. From those results they can do things like change how the CPAP deals with your apnea. If those don't work, the sleep doc has information to justify a more in-depth sleep study. Exercises like planks and wall sits seem to improve my sleep. I also take a magnesium supplement at bedtime. If you take any medication like blood pressure drugs or antidepressants, talk to Dr. because they also can affect sleep quality.