I am having trouble myself because of a cough that does not seem to want to go away.
I get up, have a cup of hot tea with honey and can go back to sleep for a couple of hours.
It is really messing me up.
Sleep, until you chronically are missing it you have no idea how precious it is.
Harmless: Are you by any means on medication for high blood pressure? I ask because I had an annoying cough that started all of a sudden. Turns out the blood pressure medicine was doing it. I switch medicine and it went away. Good luck