Lots of people can’t do that, we need to manage our sleep. The thing that helped me not worry about sleep was the routine. But that needs to be maintained and tweaked. I don’t worry about it, but have to think about it.
Do you have a health condition that requires you to manage your sleep? Pragmatically how does that shake out?
I was not speaking to those with medical conditions or similar. It was more general advice that helped me in the past for those who don't have sleep conditions, but are giving themselves one because they're needlessly worrying about or optimizing it.