Health sleep time in bed wrong

The reported time in bed is being reported incorrectly. All the other sleep metrics appear correct. I have my sleep focus schedule time set for 10 pm, in case I go to bed that early, although I rarely actually go to bed then. Example: I went to bed at 12:44 am last night and got up at 9:37, according to the time range shown in the graph of sleep cycles. That’s 8:53 time in bed. But Sleep is reporting 11:16 time in bed, a difference of 2:23. I thought perhaps Sleep might be calculating time in bed based on my sleep schedule (10pm), but if so, that gives a difference of 2:44. For reference, I’m using/wearing an Apple Watch Series 8 with latest watch OS as well as iPhone 12 Pro w/latest iOS. I put the phone on charger for a couple hours prior to going to bed. I didn’t log what time I did that last night, but it was close to 10 pm. It would have to have been at 9:39 (not sure what time I actually put it on the charger) to give 2:44 time in bed. Could it be tracking time in bed from the time I put it in the charger?