My Son has been going through a phase of getting up in the middle of the night saying that he see's ghost in his room. Ofcourse I assure him there is no such thing!
Growing up with so many sisters. We all had those same fears. But for us it went like this!
Me: Mom I had a bad dream
Mom: What was it about?
Me: I would then explain about the ghost coming in my window
Mom: Go back to sleep! Your sister had that same damn dream last week and she's OK.