People often call me a night owl because I stay up late at night to play games.
Night owl (person)
A night owl, evening person or simply owl, is a person who tends to stay up until late at night, or the early hours of the morning. Night owls who are involuntarily unable to fall asleep for several hours after a normal time may have delayed sleep phase syndrome. 
The opposite of a night owl is an early bird – a lark as opposed to an owl – which is someone who tends to begin sleeping at a time that is considered early and also wakes early.
to stay with his parents at their home in Haifa. Michael was away, as he often was, doing part of his military service in the Negev. Dr Bruno, his father, told me of the circumstances which he believed had contributed to the formation of his son's outlook on the world. A grateful patient in his medical practice in Hamburg had summoned him to his house late at night on the pretext of an emergency call on behalf of his infant daughter. "When I arrived, he said it was not