DD sleeps for about 9 hours, waking briefly once or twice in the night. She 5 years old, it sounds like a lot of sleep but it's far less than DS (9).
She has a solid bedtime routine and goes to bed between 7-7:30. She usually sings herself to sleep, falling asleep around 8:30. She is up at about 5am (any time from 4:30-6am). I have tried everything to increase her morning time. Putting her to bed later doesn't help.
Every 3-4 days she has a melt down day where everything is not right and she cries at the simplest things, clearly tired.