Daydreaming for me usually leads to nighdreaming if I'm lying in bed.

But my problem is anxiety. I usually only sleep when my exhaustion overcomes my anxiety; similarly, I get up when my anxiety overwhelms my exhaustion. I'm always some combination of exhausted and anxious and it's an ongoing problem. I have no useful advice to give you, I'm just showing you the dark path I myself tread.

Given my druthers, I read novels until I fall asleep.