H.M.
My daughter who is 4 1/2 started doing this a few months ago. I researched and read and talked to the doctor. I'm sure your son is having night terrors just like my daughter did. It happened about 7 times in three weeks and then just stopped. Twice she has started to do it but for some reason did not go full blown. The lucky thing for me was she never got out of bed unless I picked her up. My friend's son would walk around the house and she said one time she caught him trying to climb the blinds on their window. The sleep walking would be the most dangerous part. I liked the idea of the slide locks on the top of the door. And the bell idea made me think of something...hang a bunch of bells on the door of his bedroom or something that will make noise if he opens it so you may wake up. As for the night terror itself... they say there is no real known "cause." But they often go along with being over tired. I also read that being too hot can cause some kids to have them. So my daughter started sleeping in just a shirt with no blankets. And if I yelled at her too much close to bedtime she would have one. It was a bunch of things all together that I tried to change. And honestly I don't know that a single one helped!! I felt better trying though :) Some kids are just prone to them. It is so scary for the parents when they are screaming and crying. Another thing I noticed is that my daughter would have to go the bathroom as soon as she "woke up." So I tried to put her on the toilet while she was crying and sometimes she would pee and it seemed to wake her up. Again I don't know if there was a real connection or not. Most things I read say not to move them or talk to them but I couldn't do that. I felt like I needed to try something to get her out of it. Another thing I read was to ask your child where mommy is. Or whoever is right close by. When they are still technically asleep they will continue to cry or sometimes say they don't know. But when they finally wake up they will be able to point to you or show some sign that they know who you are. That was the best way and the earliest sign that she was finally coming out of it. I worry that my son will also eventually have them but I take comfort that my older two daughters never had them. Good luck and hopefully it passes as quickly for you as it did for us. If you have any questions just let me know!