Same here. It’s 4:30am & my brain is tired, my body is tired, but for some reason, my eyes just don’t want to stay shut.
The thing with the suggestion on reading a book, you need a light on to read. I also need my reading glasses. So having a light on and glasses on my face makes it even harder to sleep. Sometimes I’ll put earbuds in my ears, not plugged into anything, just to cancle ambient noise.