[angrais]

Am I understanding this correctly: you let your 3-5 year old daughter stay up each night to 02:00?

When did the sun set where you lived during that time? I suppose that was a big influence on sleep times?

[jedberg]

Yes, that is correct. And they slept until they weren't tired anymore, which was usually 9ish hours, a totally normal amount of sleep for someone that age.

We live in the Bay Area, so the sun was setting around 8pm since it was spring/summer. Our whole family are night owls, but regular society just isn't designed for that.

Of course now that they have regular school they have a regular bedtime that still gets them 9+ hours sleep (actually closer to 10 hours), but they are still groggy and slow in the morning because it is not when their body wants to be awake.