Hi, over in the German thread for this topic, this worked for some (including me).
- Go to Settings → Apps → All Apps → in the top right select Show System Apps
- Search for the app NXTVision (it’s your display driver)
- Delete Cache and all Data for this app and force close it
- Download and install the October Play System Update (in the Settings app under security and updates)
- After the download, when your phone asks to Reboot, do so.
This fixed the Reboots in the morning for me (for now). Hope it helps.