My daughter is 11 and we have been using "Seroquel" this works really well for sleeping the only bad thing is that she has gained weight. This medication is for behavior so talk with your childs doctor first.

Seroquel didn't help my boy. I took some myself to see what it does. After I got a grip, I called my wife and told her to never give it to the boy again.
We give him Klonopin frequently, but you have to remember that you won't really see much difference. We hope it reduces his horrible anxiety, and we're sure it doesn't increase it.
Right now we're trying Geodon. It seems to help, or at least not hurt. When used with a Klonopin, it can provide the "doggy downer" affect you're looking for. During good days, we may skip the Geodon so he doesn't sleep too much.
I haven't taken the Geodon myself yet, but I plan to. I understand that drugs affect different people in different ways, but you'll be surprised how some of these drugs make you feel. Seroquel is given frequently in large doses to people in institutional settings. I feel very sorry for those poor souls.