My 2yrd hates going to sleep. He is normally awake from 7am til 8pm which is usually when he finally flakes out. He doesnt nap during the day and hasnt done for about four months. From the moment he wakes up he is running around. I have noticed though that for the past month he has been grumpier than usual and think the lack of sleep is catching up on him but he still won't give in. Apparantely his dad was the same. Ive tried everything to get him asleep but to no avail. Should I just leave him to it?