Maybe you should get him a nightlight. I know sometimes even my kids coming into the room in the night (if I am almost asleep) gives me a heartattack!!!!! Every thing to kids looks and sounds so different at night. Of coures, the scary movies and great imaginations aren't helping him either!! I don't let my kids watch 'scary' stuff, but things that my older son is fine with that we don't consider scary or bad... freaks my middle one out. He has came to me several times at night crying or scared and saying that he thought someone was coming with a gun to kill us all.

I don't remember what he watched that time, but I couldn't believe that his little mind made the jump from whatever it was, to something like that!!! So, I really have to monitor and be picky with what they see. I know one time he was watching Batman or Hulk cartoons and couldn't sleep. These were kinda old too. I don't know...every kid is different. But, if he says he is scared or saw something, check it out.
Not to freak you out....but when we were in elementary (early 80s) ---and we lived in the country----a friend of mine (down our road) kept telling her mom a man was in her room. Well, she just sent her back to bed and told her she was dreaming. Well, the next morning, she went into her other daughters bedroom, and clothes were out of the dresser and things were moved around. Other people in our area said the same thing over a couple of nights, and sure enough, some crazy man was around and going in anyones windows he could get open. Of course, the little girls were traumatized--I think he may have done something to one of the littler girls. so, now EVERYtime they say they hear something I HAVE to go check it out. But, thank the Lord, we have an awesome alarm system that really puts me at ease. I know they aren't perfect, but geez, it's better than thinking every tiny noise is a maniac. come to think of it.... we had several men like that we eventually found out about when I was a kid......I think we were in a messed up place!!!!