I've never liked being a morning person..... I detest having to get up before my body wants to get up naturally.
Now that I'm a bit older..... staying up at night is getting harder to do and for some reason I seem to be waking earlier. Of course, much of that may be coming from the fact that my wife is a school teacher and she gets up fairly early every day of the week.
As far as good ideas at night..... maybe..... I've had a few where I have awakened in the middle of the night with what seemed like a really good idea for a song......but I've never felt compelled to get up and write it down in any way.
I have, on occasion, after toking a few in my younger days... been setting with my guitar and come up with some freaking brilliant ideas AND had the recording machine ready to roll......and let it roll. After the recording, I recall thinking that I had just captured the next #1 hit song........ hoooooo boyyyy! Time for bed and I'll get up tomorrow and refine it and get it ready..... Next morning..... what the.....? That's can't be the same tape.... no..... this sux........ what was I thinking?