I can actually vouch for this, but I discovered it independently for myself. I realized that the nights I couldn't fall asleep were nights my brain kept racing and thinking about different things. Kind of like a wikipedia rabbit hole where my mind keeps racing onto the next tangential thought. So I found a foolproof solution: Relax all my facial muscles and imagine an empty, black (literally #000) void in my mind's e…
Must try this though - my wife is often asleep in a minute or so while I take tens of minutes. I wonder how much using mobile devices in bed at night has affected sleep patterns.