Hello @speranza16, this is unexpected.. as at the moment we merge any sleep session with a gap shorter than 15 minutes together and than we look for the longest sleep session fro that day to use it for the fall asleep hour… so if this holds than an afternoon nap should not do anything with fall asleep hour as it is ignored..
Can you describe what sleep sessions you have for that day?
I did just tried to reproduce this:
- I looked at the fall a sleep chart
- added a nap for yesterday 15-16
- the fall asleep charts looks exactly the same