While three of my children have been asleep for at least a hour, one still remains at large. He has a torrent of excuse, but what it all comes down to is he doesn't want to go to bed, plain and simple. Some may say, "Give him a good swat and he go to bed"! What do I say to those people, you have never lived with a strong willed child before. Trust me, it doesn't work.
Normally we practice bedroom time, as long as they stay in their own rooms and are quiet, they can stay up as late as they want. After the first week of staying up really late gets old, they are in bed at the time that they should be in bed, but not always. Here goes another round of good old fashioned mind over matter!!