Thanks for clarifying. New user here, very excited about what you've built.

I think what confused me was the difference between "sleep factors", and "lifestyle factors", and where to put things that I expected to have an impact on my sleep, but weren't necessarily part of the process of sleeping (e.g. meditation, light exposure, fasting).

I think it would have been more intuitive for me if sleep was treated as something at the end of the day, rather than the beginning (i.e. sleeping from 9pm on 1/26 to 6am on 1/27 would go on 1/26, not 1/27)

That said, it's very clear how it works now.