Sorry, my answer to another question made me think of this

two things my younger two never fuss about: food & sleep. my middle one used to grab her toy and take herself to bed sometimes. as a baby, she slept from 7pm to 10am sometimes. currently my youngest is 2 and will literally tell you when she's tired.

my oldest, on the other hand, like me and all the women in my family, sleeps very rarely and lightly. she hated naps as a baby, didn't sleep through the night til 18+ months old, and generally does not sleep well at night still at 5 and a half years old. i always make them have "quiet time" though, and if she sleeps, then she's either sick or dog tired.