DS2 (age 6) often wakes up crying an hour or two after he goes to bed. The first thing I hear is a thump. By the time I rush upstairs he is almost always standing in the middle of his bedroom crying and shaking. Sometimes his teeth are chattering. Usually he is bathed in sweat - and it happens much less since I changed his bed to having a summer weight quilt. He can sometimes talk to me and answer questions but I don't understand what has scared him. He doesn't calm down until I move him into another room and then he falls asleep quickly and can't remember a thing about it the next day. The last time it happened - two nights ago - he kept saying "alright, I'll do it" (whilst crying hard)and he told me that there was something in his room which was neither a man nor a woman but was talking angrily to him and telling him to do naughty things. Then he has no memory of any of it the next morning. He shares a room with DS1 (age 7) who sleeps right through it all.