We recommend for prevention to charge the phone since the app "stays open" and can consume 10 to 30% of battery at night.
That said, you can not connect it but if so, have a minimum of 80% charge. (Charging the phone helps it stay in the background, which is crucial for Morning to work)
❓❗️ Leaving the phone plugged all night will damage my battery!!
We understand but, battery degradation has more to do with the way we charge rather than with the time the device is connected. Try to avoid short charges or drain the battery until it is empty.