Daytime nap (out of sleep time) replaces nightime sleep

One fix for this which hints at what is going wrong is to estimate your old start and end of sleep times.. add those in and then it will bring back your old data. It does seem to have trouble knowing when you started and stopped sleeping.. I guess since you manually input the times. However, given it has data it should do a better job to determine when you were awake during those times.

This suggests the issue is that its only designed to have one sleep window and that window opens and closes when it analyses data for sleep. If you nap it moves the window of analysis. You are manually moving it back again. The fix.. well for me its to have "main sleep" and "naps" as different things. You add the idea of a nap and how that contributes to body battery and sleep score etc.. and it creates a new anytime time window that looks for sleep type etc... You can have infinite naps.. these are times the watch decides you are sleeping outside the hours you set. Note some people seem to be getting false positives for sleep as well.. these would be identified as naps. In this case the person should be notified to flag as a nap or not and over time perhaps the aglorithm can be personalised to be more accurate for them. This would surely be great for regular siesta sleeper in Spanish countries or hot countries were this is routine and for atheletes building in extra sleep as naps. I think its an interesting new feature as well as naps have quite a science of their own.

Thanks Bluefish for pointing this out. As I understand it its not resolved anywhere yet.

I just had this , and my very refreshing long  nap is slightly ruined by seeing this 

It's shocking they have such appalling bugs - hardware is good but software obviously has insufficient testing

I've had naps logged successfully before , I suspect they have a hard coded max nap length which wasn't in the spec and if you surpass it then the original sleep gets replaced as by definition you can only have one overnight sleep per day (even if it's broken )

Absolutely shocker . I'll now fumble to turn this off or forever be wary of long naps.  Thanks Garmin 

Developer : fenix 7 sapphire solar , not that this matters , just go fix it please 

I just had this , and my very refreshing long  nap is slightly ruined by seeing this 

It's shocking they have such appalling bugs - hardware is good but software obviously has insufficient testing

I've had naps logged successfully before , I suspect they have a hard coded max nap length which wasn't in the spec and if you surpass it then the original sleep gets replaced as by definition you can only have one overnight sleep per day (even if it's broken )

Absolutely shocker . I'll now fumble to turn this off or forever be wary of long naps.  Thanks Garmin 

Developer : fenix 7 sapphire solar , not that this matters , just go fix it please 

What drives me nuts is marketing will start shoving AI down my throat when logging a nap outside of sleep hours as a sleep when there was already a perfectly good sleep recorded is just a straight damn bug .

I do care about this stuff . I do use the data to help me track my sleep duration and quality and to motivate me to improve both which matters . And spent a lot of money on a quality watch to help achieve this .

Nobody gonna read this anyway (human or rant) so I will just get on with my day.. I just woke up, apparently slept only 3hours last night so I'm cranky  

Human or bot*

Good hack to fix it ! Thanks 

And a better explanation for what's going on than mine!  I still suspect there is some hard coded ' max time ' for which it's not considered a nap, and the bug is the logic to asses this and record as a sleep and adjust the start / end time takes precedence over the fact it's not even in the user defined sleep hours . 

So it sounds simple to fix , just log sleep outside of sleep hours as naps regardless of duration 

There will be some edge cases , say for example you get a short overnight sleep, get up early and go  for a run , then come back for a monster nap which starts during your defined ' sleep window '.  That will be difficult to assess and building a UI to ask what's going on is expensive .

But I just had a regular normal 7 hours sleep and went for a run , then took a 3hr nap outside of sleep hours.  Standard Sunday hahaha .  Sure the nap was earlier and longer than normal (pretty sure there is no 'AI' used to determine that) but nothing funny going on here at all