My reception nearly 5 year old always used to sleep 11-12 hours a day, he would happily crash out between 7 and 8. Since the return to school this week, I can't get him to go to sleep, he just starts playing with toys. Its nearly 9 oclock, he will be knackered and grumpy in the morning.
I tried putting him to bed at 7, tonight I let the boys play and put him to bed at 8 - but the same outcome.