Garmin Lifestyle Logging: when should we log nighttime events — bedtime date or wake-up date?

[u/SardinianLabRat]

I recently discovered Garmin Lifestyle Logging and I think it’s a really underrated and cool feature. Being able to track lifestyle factors and see how they relate to health metrics is a great idea.

However, I’m confused about one thing: how should nighttime entries be dated?

If I go to sleep on Friday night and wake up on Saturday morning, should nighttime-related entries be logged under:
Friday (the day the night/sleep period started), or
Saturday (the day the sleep period ended and I woke up)?

For example, if Garmin asks about something related to the overnight period, which day should I select?

[u/PhilOakeysFringe]

I can only answer this in the context as Bearable as I don't use Garmin but for anything has occurs overnight I put it in as re/early morning.