My 3 year old is going to sleep later and later every day and as a result wakes up later too. he used to go to sleep at 9, then it became 10, and today it's 12am! He goes to childcare so nap is between 1-3, 2hrs as max. I've tried everything I can - starting his routine earlier, putting my foot down and refusing any more songs/stories, rewards in the morning, scare tactics, draw him a schedule, etc. But nothing seems to work and he just doesn't want to sleep! he knows how to turn on the lights when I switch them off, he knows how to let himself out when I lock him in, he doesn't get scared when we scold him. I'm seriously getting very frustrated! someone please help!!!