Hello, Are a night person also known as a night owl? 
I sure am!  Don't even TRY waking me up in the morning!  I love to  stay up until late at night, and sleep late in the morning!
What is the latest you've stayed up? 
I've stayed up as late as 5 am - my wife however, is a lark - she  begins sleeping at a time that is considered early, and gets up early!
Did you have to go to work the next day? 
No, I  work the night shift, thank goodness!
Did you drink any energy drinks to get you through the late night to stay awake? 
A keg of coffee!  LOL  I've been diagnosed with delayed sleep-phase disorder, which means I just can't adopt to normal sleep patterns!
Is delayed sleep-phase disorder something serious or just a benign thing? 
It's not serious - it just means that my circadian period is quite a bit longer than 24 hours