As somebody who deals in the area of sleep health, I wonder if people would be willing to sleep with an airpod in their ear to track their sleep, snoring, movement, etc. It would certainly be better than tentatively putting your phone under your pillow to do similar tracking. But not sure people would feel comfortable enough to sleep with it.
But if they are willing to have it in their ear all day while they are conscious, maybe it’s okay when they are unconscious too. ¯\_(ツ)_/¯