@Fufu_508 many tanks for the ides.. in fact the API does not require the data to arrive constantly through out the night, but most of the wearable implementations also support all the data beeing sent in the morning in one batch..
But the problem is some of the core features won’t work in this scenario - like for instance smart wake up etc..
So maybe a good approach to this is to let the device sync with a health service like Google Fit and we can than receive the data already aggregated from there?