So the one night my son sleeps almost all night ( went to sleep at 7, woke up to eat at 12, got a…

So the one night my son sleeps almost all night ( went to sleep at 7, woke up to eat at 12, got a bath, slept until 3:30, ate, asleep again) is the one night I can't fall asleep for the life of me. If I would have known I wouldn't be able to sleep I would have taken melatonin at 8, but now it's 4 am and that idea is completely out the door. Fml, I'm going to be exhausted tomorrow.