slowmovintarget
3 hours ago
The real reason to sleep on it is that the hippocampus plays back the day's events into your long-term memory and omits the emotional context so that when you recall it, any emotion you have is fresh reaction, and recollection that you felt a certain way, but not a replay of the sharp emotions at the time the events occurred.
So sleeping on it is a way to wash the crud off the occurrence before reexamining it with a little more objectivity.
I read about this in Models of the Mind by Grace Lindsay. Great book.