Sleep is something that is often overlooked while people tried to optimize for other things.

People are having low testosterone, problems with always feeling hungry, low energy, or anxious and will take medications for it before they Make a diligent effort to be disciplined about sleep hygiene.

Avoiding caffeine and alcohol within 8 hours of bedtime is a big one

Keeping the room at 65° f

Blackout blinds and noise canceling headphones

Stretching immediately before bed

Those are some things that I do but there are more things to be aware of if you Google the term "sleep hygiene".