you can sync your sleep data with fitnesssyncer to a different place if this help, anyway there are some strange things, here a FAQ by the developer:
you can sync your sleep data with fitnesssyncer to a different place if this help, anyway there are some strange things, here a FAQ by the developer:
https://www.fitnesssyncer.com/support/garmin-connect#q6
especially this one is very interesting:
Garmin Connect samples the sleep and can send us a couple updates of the sleep records before it is finalized, but are sometimes indistinguishable between the completed and incomplete sleeps. Depending on when the sync occurs, it is possible that the sleep sent was incomplete.
The workaround is usually to add a filter. In the Comment field of the Sleep