I am a night owl, I am more an evening person and tend to stay up late at night. Yesterday I went to bed at 5:30am 
wow! yeah I like staying up late too. I worked 3rd shift for many years
Wow! I love the term night owl because owls are my favourite animals. The term actually came from the nocturnal habits of owls.
yeah, owls are pretty cool creatures
I a an extreme night owl, because I stay awake until just before or after dawn. However most nightowls can be considered people who stay awake past midnight 
yeah, you dont have to stay up all night to be a night owl. maybe even before midnight. 
Yeah, and some nightowls who have difficulty sleeping at night actually have a delayed sleep-phase disorder.
insomnia is a real problem for many people