Did you have a bedtime as a child (lets say, age 7-13 years old)? If so, what time was it?
Partner and I have been discussing.
I never had a bedtime, often took myself to bed around 9pm (definitely by age 8, possibly before) and never had a problem falling and staying asleep.
Partner had strict bedtimes, changed dependant on age, could never fall asleep at bedtime and still now, struggles to fall and stay asleep.
Could be completely unrelated to bedtime but I found it interesting.