First please don't think I am bragging - I know how lucky we are that we have a great sleeper! My 3 year old goes down at 6:30pm. Always asleep before 7pm and then usually awake between 7:30am and 8. So he averages about 13 hours of sleep a night (no daytime naps.)
He seems to really need this much sleep but I am going back to work soon after a year's adoption leave and he will be doing some full days at nursery. He will therefore have to get up a bit earlier and probably down a bit later and I'm not sure how he will adapt. Do children just naturally need less sleep as they get older? He will only be at nursery 3 days and we'll need to leave before 8 on those days so I suppose he can have a lie in on the other days if he needs to. I'm just worried he's going to be shattered and grumpy all the time!