Falling-asleep tricks

I thought I'd post about falling asleep. I'm not sure if I'm asking for advice or simply sharing my (by now) impressive arsenal of falling-asleep tactics... though I am definitely curious about others. How do you fall asleep? Do you do anything special at all or does tiredness always take you right out?

All these refer, of course, to nights when I'm stressed-out enough that tiredness alone doesn't do it, which I have to confess is most of them these days. ( My tricks... )