I’ve been using the WHOOP tracker for the last few months. Initially did some work to determine what my baseline was, but every morning you answer a journal (it

I’ve been using the WHOOP tracker for the last few months. Initially did some work to determine what my baseline was, but every morning you answer a journal (it’s most differentiating feature, imo) where you add things like alcohol, caffeine, melatonin, etc consumption and other things like airline travel, sleeping in same bed, etc. After seeing what is correlated and not, I have had an extreme increase in sleep quality. Notably, melatonin doesn’t do much for me (I thought it did), working out less than 45 mins doesn’t have much correlation, lots of alcohol is inversely correlated with sleep (a surprise for me, always felt like it put me to sleep faster, which it seems to but st lower efficiency and quality). Plane travel kills my sleep, as does not sleeping in my own bed (hotels). Overall, and anecdotally, highly recommend the approach of tracking things. Also highly recommend a WHOOP[1] activity monitor device, which is free itself (but data subscription). One particularly interesting thing is it doesn’t take into account weather, though it seems like that could be low correlation since I sleep in climate controlled environment. Interestingly, more anecdata, a friend found out they had Covid before they were able to test positive based on whoop data changing. I realize I may sound like an advertisement, but I have zero affiliation, just very satisfied. [1] https://www.whoop.com/ https://www.whoop.com/