Boat — I could not get data on my smartwatch

After around a month o[censored]se, my boat Wave Sigma 3 smartwatch stopped syncing sleep data. Steps and heart rate were showing, but sleep was missing for many days even though I was wearing the watch at night. Restarting and reinstalling bhi try kiya but kuch farak nahi pada, so I reached out to customer support through WhatsApp. Unka reply same day aa gaya and asked me a few specific questions like whether battery saver is on and if the app is running in background. They also asked me to update the app and keep Bluetooth on overnight once. I followed that and sleep tracking started appearing again.