I track sleep simply to note the amount, not quality. I tried a number of sleep trackers - Android apps, smartwatches - all of the "automated" solutions felt ha

I track sleep simply to note the amount, not quality. I tried a number of sleep trackers - Android apps, smartwatches - all of the "automated" solutions felt having spotty precision. Not talking about minutes, but hours, when I was staring at my phone or been awake without moving. The only precise auto trackers seem to be bulky headbands. The most comfortable method I found is simply manual button pushing. I track my phone usage, and log time between screen-on time (+-10m to account for time to actually fall asleep). When I can't sleep for longer times, or get up for toilet, I quickly press the power button (phone lights up for a few sec accounting to screen time). I know this probably just _feels_ more precise and needs to have a phone around (generally not that good for sleep), but it still seems to be closer to what I experienced. It baffles me that all the gyro/heartrate based smartwatch platforms don't account for screen time this way.