I forgot that the Arby's and McDonald's in the area have also gone 24 hours (don't know if they do that everywhere), there's also the local Around The Clock Diner, which is a really cool place, a lot like the old school diner's you see in movies. I no longer frequent that joint thanks to a girl though, oh well.
There's also the 24 hour IHOP by the awesome Barrington Theater. My brother and I go see at least two or three movies, pay and sneak of course, because Barrington is a good thirty to forty minutes away, and then chill afterward at the IHOP, eating pancakes at 1 in the morning is underrated.