Thank you for contacting Just Answer. I am sorry that you are experiencing these difficulties. NO --- I don't think you are doing anything wrong. Different kids are wired differently genetically. I will tell you a story about two children of one of my patients. One --- you put her to bed --- cried for 2 minutes and out she was. The other a boy --- you'd put to sleep and you couldn't walk away --- he'd cry and cry and cry. At a year -and- a- half his mom put him to nap. She put him in his crib and the next thing she knew is he climbed out of his crib. Opened his bedroom door --- put his hands on his hips and said --- "Make me!" That kind of summed up what he was like -- Fast forward to present day --- a man in his late 20's --- full of energy --- works as a lawyer --- around the clock and everyone around him --- meaning other lawyers working with him wonder where he gets all his energy.
So the moral of the story is most often it is genetic unless, he has physical problems that are not letting him sleep. Certainly, you would have noticed that, as would have his paediatrician. Needless to say physical things are to be ruled out first. But as I said --- often it is not physical.