Waking in the Night
Although your child is now old enough to keep himself awake on purpose he still cannot (and never will be able to) wake himself on purpose. Waking up in the night is not a "habit." You cannot teach your child not to do it, either by ignoring him when he wakes or by scolding him for it. In fact, night waking has nothing to do with discipline, and parents who tell you, smugly, that their children know better are fooling themselves. Don't let them fool you.