resetYes, sleeping hours are included in an overnight fasting interval when no caloric intake occurs during them. The clock does not pause when you go to bed. The start is tied to the intake you are recording, not to the time you fall asleep.
Count one continuous interval
Imagine the following evening and morning:
- Last food or caloric drink: 7:30 pm.
- Bedtime: 10:30 pm.
- Wake time: 6:30 am.
- First food or caloric drink: 9:30 am.
The full interval is 14 hours: three before bed, eight asleep and three after waking. Do not add the eight sleeping hours to the 14-hour total; they are already inside it.
You also do not start a new session when you wake up. One continuous overnight interval normally belongs in one record.
Bedtime is not the start time
If you finish dinner at 7:30 pm and go to bed at 11 pm, using bedtime as the start would omit three and a half hours. Conversely, a snack at 10 pm means a record intended to show time since the last calories should begin at 10 pm.
Choose a clear definition for your log and use it consistently. Reset is a timer, so it cannot detect meals or decide automatically whether a drink changes the entry.
What if you wake during the night?
Being awake does not itself end the interval. Eating or drinking something you count as ending it does. Record the actual event rather than using the sleep tracker on another device as a substitute for meal timing.
If a medical instruction requires eating or drinking, follow that instruction. Keeping a timer running is never a reason to postpone necessary care.
Make the morning record useful
Check the actual start before looking at the countdown. If you started the app late, edit the start time. If the displayed end looks surprising, use the calculation guide to check it.
This is an explanation of timing, not an endorsement of fasting or a claim that sleeping through a window makes it appropriate. Read the safety context before changing your eating routine.