B.G.
Ditto the Weissbluth suggestion, the book is called, "Healthy Sleep Habits, Happy Child" In the meantime, one of the basic premisses (sp?) of the book is that sleep begets sleep. In other words, start the process of putting him to bed earlier and long before he seems tired. This method from the book helped us sleep train both our daughters now 5 and 7. And that rule still holds true, the earlier they go to bed the longer they sleep. It seems counterintuitive, but it works! Good luck!