My 3yo DS sleeps from 2030 til 0530. Earlier bedtime equals earlier waking. He will occasionally fall asleep in the car but that time will be deducted from his overall sleep time that night. No other naps. He is very active during the day (but not hyperactive, just your usual 3yo boy).
The NHS website says he needs 11 to 12 hours but thay just isn't happening! He is very awake after his 9 hours and see well rested (though can usually be persuaded to stay in bed til 6am, he'll be talking to himself and his toys for that half hour).
www.nhs.uk/live-well/sleep-and-tiredness/how-much-sleep-do-kids-need/#3-years
He is NT and average bright (maybe slightly above average in some ways but not "gifted" or anything. Just your usual happy active 3yo).
Anyone else had kids that just don't need a lot of sleep?