Here is a screen shot what what is happening. I plug it in when I got to bed. I've tried different chargers, different cords, different outlets, and a factory reset (which sucks by the way). It doesn't happen every night, but I'd say more than 50% of the time.
Thank you for your help.
View attachment 193678
Could be that the phone is overheating as it's charging due to a rogue app running in the background. Install gsam battery monitor. There is a graph that shoes you the state of the battery and the temperature.