It's 3 a.m. and your brain refuses to shut off, but all you want is some shut-eye. When I recently found myself struggling with the dreaded middle insomnia, I decided to stress-test a sleep expert's strange hack: the 'fake blink'.
This calming method stops your brain from wandering, so you can get back to sleep. It only takes 30 seconds to work and I found it effective from night one.