The 4am Panic is achieved when the work I need to complete exceeds my mental capacity to consider it. Something annoyingly biologically chemical is triggered at 4am where apparently I must uselessly consider all of my current work on my plate for no productive reason at all. Just stare at the ceiling and fret until I fall back to sleep.
In my case I don’t actually fall back to sleep and simply head to the office at 5 am. Starring at the ceiling while watching my entire to do list scroll by is pretty maddening. I am an internal optimist who REALLY needs to learn to delegate.