Hi M.,
I use Kim West's method from her book "Good night sleep tight." but I didn't use it until my second child. My oldest child is four and I have a couple of suggestions that we used with him. First, Don't go to bed with your child! He shouldn't have to depend on YOU to go to sleep. He needs to be able to put himself to sleep. Second, if he get's out of bed, there have to be consequences. For my child, everytime he got out of bed, we took away a stuffed animal. (he loves his stuffed animals) If he got out of bed a second time, it doubled to two animals and so on and so forth. That worked for him. you need to figure out what your son's currancy is. Maybe take away computer, TV or videogame time the next day. Say no cookies or food he loves etc. Maybe he can't go the park, play with friends, or even play outside the next day. You can figure out what will shock him and get his attention. And you HAVE to follow through on your rules. don't chicken out and say you will do it next time he does it. I don't think you need to "trap" him in his room. He should be able to understand the consequences of his actions and act accordingly. We also let our son earn his toys back by doing good deeds or cleaning up toys etc. Third, you need a set bedtime routine. limit things like books, water, potty etc. Give him just ONE drik, ONE trip to the potty, because he will definately use it against you if he can. Just remember that YOU are the boss and he needs to listen to you. Stay calm, don't get frustrated. Have a plan and follow through. No yelling, just calm actions to his consequences. Make sure his dad knows the plan too and you are on the same page. You can do it! I'm sorry that it is so frustrating for you right now. It doesn't help when you are tired either. Good luck and let us know how it goes.