I'm in the same situation!
It's annoying. I have no kids nor job that I need to wake up for. Yet I'm awake at 4:30 every day and can't fall back to sleep.
Have you heard of the theory that different hours of the night are associated with different systems or organs of the body and if there's a time of night that you always wake up it's because something is off with that organ or system? I think it's Chinese medicine type stuff.
Gm fren! 🫂