Your time of day has a split personality -- sometimes it's sweat-streaked and loud, and you're on the dance floor, getting your third wind, and shouting lyrics like you'll never run out of energy. You are the time of night that carves itself into your memory forever, because you'll never forget how much you love these people and this moment and this song. It's not always about unforgettable parties, though. Sometimes your late night (err... early morning) burst of energy happens when you're home alone. Those are the times when you say, "I flat out refuse to go to sleep until I finish reading this book, or typing this page, or reorganizing my entire closet." In either case, you are the time of night when it feels sort of forbidden to be awake, but you love accomplishing something special long after everyone else went to bed. And hey -- you can always catch up on sleep tomorrow, right?