You’ll sleep when you’re dead. Maybe.
Growing up, you were the last to fall asleep at sleepovers.
Disney / Via toovia.com
And now, you're restlessly awake for hours after your significant other has fallen asleep next to you.
You have friends in other timezones to keep you company when everyone around you is fast asleep.
You schedule emails to send later so your boss* won't judge you for working at 4 a.m.
*And colleagues, and professors, and friends, and parents.