I specifically need to zone out and calm my mind TO fall asleep. Took me years to teach my brain that "lying down in bed" == "brain turns off".

Otherwise I'd spiral into a web of incomplete thoughts that would never get anywhere and I'd just get really stressed - and then fall to a restless sleep, anxious.

Now if I'm a bit wound up, I put on some wireless headphones and listen to some really boring or non-consequential podcast with a sleep timer on Overcast. Unless I'm really stressed, I never get to the end of a 10 minute episode.