Fwiw, I can also usually do this and I would consider myself a world class dweller. For me, it's about - consistent bedtime - doing as little as possible inv

Fwiw, I can also usually do this and I would consider myself a world class dweller. For me, it's about - consistent bedtime - doing as little as possible involving a screen in bed - consistent bedtime routine - consistent bedtime Screwing any of these up can quite easily cause me to start worrying about things instead of falling asleep. But I also think in part I'm just lucky and I can't really explain what causes it. I was always able to fall asleep in the car when I was younger, almost instantly. I can't fall asleep on public transport or planes at all though unless I'm really shattered.