Before I start, I know lots of people don't have a child who sleeps 10 hours in a stretch so I'm not whinging but DD (20 months) took around 18 months to get to the stage of sleeping through the night and now she does fairly regularly, but very rarely for more than 10 hours.
This means she's asleep between 7.30 and 8, and then awake between 5.30 and 6. When she wakes up she wants to be up and about straight away, even though she still looks tired (dark circles) and continues to yawn. She still has one nap after lunch of 1.5 to 2 hours - I've tried cutting this down a bit but she's really unhappy if we wake her from the nap and will be inconsolable for up to half an hour.
If we go out in the car in the mornings, say around 9.30, she often falls asleep if it's more than a 15min journey which suggests to me that she could do with a bit extra sleep in the mornings, but I don't know how to encourage this?