I use sleepyti.me quite often and it's helped me a lot. I remember about a year ago I found that sleeping ~6.5 hours or 9.5 hours felt way better than 7-8, but I never looked into why that was. After discovering your app, I now know why and how to combat all-day grogginess. So thank you.
If I get really involved in something and realise it's past my normal bed time, I'll check sleepyti.me and if it's close to a good time to fall asleep I'll take some melatonin and fall asleep, otherwise I think to myself "I'll have to survive on one less cycle tonight." and keep working.
By the way, in your research did you learn where the 8-hour myth originated?
If I get really involved in something and realise it's past my normal bed time, I'll check sleepyti.me and if it's close to a good time to fall asleep I'll take some melatonin and fall asleep, otherwise I think to myself "I'll have to survive on one less cycle tonight." and keep working.
By the way, in your research did you learn where the 8-hour myth originated?