I think for me its a collection of small habits/changes in lifestyle. - Stopped caffeine few years ago and that helped a lot. - Waking up at the same time, eve

I think for me its a collection of small habits/changes in lifestyle. - Stopped caffeine few years ago and that helped a lot. - Waking up at the same time, even on weekends helps to not get the sleep cycle out of sync. - Daily exercise.