0 a person who prefers to be awake and active at night
1 someone who prefers to be awake and active at night:
My wife's a night owl, but I like to be in bed by 10 o'clock.
The opposite of a lark is a night owl, someone who usually stays up late and may feel most awake in the evening.
Night owls tend to feel most energetic just before they go to sleep at night.
Night owls have often been blamed in the past for unpunctuality or attitude problems.
Some night owls who have great difficulty adopting normal sleeping and waking times may have delayed sleep phase disorder.
Berlin's civilian work schedule had been that of a hardworking night owl, generally writing material until two or three in the morning.
Usually, people who are night owls stay awake past midnight and extreme night owls may stay awake until just before or after dawn.
