A midnight hooter
A midnight hooter is someone who thinks bedtime is a suggestion, not a rule. They live by the motto: 'Why sleep when you can be annoying?'
My brother is a midnight hooter. He yells at me for being asleep at 1 AM.
She’s a midnight hooter. She texts me at 3 AM about her dreams.
He’s a midnight hooter. He texts me during my dinner about his midnight thoughts.