a night owl - A human who stays up until the early hours of the morning, j

A human who stays up until the early hours of the morning, just so they can be annoying to everyone else.

I stayed up until 3 a. m. because I was too cool to sleep.

I didn’t go to bed last night because I was too busy being a genius.

I was up all night because I was too busy pretending to be awake.