Amusingly my Apple Watch pulse ox showed low so I did a sleep study. It's invasive, but it plugs into your nostrils (and in my case held them open). Slept like

Amusingly my Apple Watch pulse ox showed low so I did a sleep study. It's invasive, but it plugs into your nostrils (and in my case held them open). Slept like a baby. Next day 99% was the lowest reading. No problem. Now I use these sleep strips from this company called Intake. Sleep well. Holds nose open. I have a deviated septum, apparently. I think it's from falling off a tree onto my nose as a child, and being hit in the face by basketball numerous times. But probably not. What was funny was that at-home sleep study was damned good sleep because it held my nose open!