Wanted to share this with everyone. How many hours does your child sleep now?

My no.1 is 5.5 years old, she slept from 6pm-7pm to next day 5-6am, and no afternoon nap. I see some of my friends' kids are still taking afternoon nap and wondering if my child is not normal. This table is very informative! I somehow worry my first born doesn't have enough sleep. For my no.2, he is 2.5 years old and take 2 hours afternoon nap. He sleeps from 8pm to 6am in the next morning. So, he gets 12 hours sleep in total and within the normal hours of sleep. I feel young kids must have enough sleep daily else they will turn cranky and unable to concentrate well in school and any form of activities.