We’ve all been there: You’re snug in bed, moments away from drifting off, only to be jolted back into a state of annoyed wakefulness by a loud, persistent sound coming from the other side of the bed.

Anyone who sleeps next to a partner who snores will be keenly aware of that moment that makes your heart sink. You’re just drifting off and, suddenly, you're not. Instead, you're doomed to listen to ...