That happens to me quite often, if I have dinner and stay three or four hours awake and then go to sleep. I wake up 3 or 4 am with my stomach grumbling and aching to the point I can't get back to sleep. So I do what any reasonable person would do: get up and huff 1200 calories in form of some disgusting huge meal. LOL, except not. I have some crackers or cookies, with some water or milk, and get back to bed.