Your Sister and Her Daughter Are Visiting You

Your sister and her daughter are visiting you.On the first night of their visit, your preschool niece awakens everyone by sitting up in bed screaming.She is still screaming when you and your sister get to her.As you try to console her, you realize that she is sweating profusely and is not really awake.The next morning, you ask her what caused her to scream, "Was it a bad dream?" Your niece does not seem to know what you are talking about.Then, you remember what the problem could be.Describe the sleep disturbance your niece is experiencing, and explain why it is not a bad dream.