Snoring and disrupted breathing are among the most common reasons people sleep badly, and among the most fixable. Most night-time snoring comes down to one of two things: breathing through the mouth instead of the nose, or a narrowing of the airway as the throat relaxes during sleep.

The guides below explain what is actually happening when you snore, how nasal breathing changes the picture, when snoring is worth investigating as possible sleep apnoea, and the practical tools - from mouth tape to nasal strips - that help you breathe quietly and wake up clearer.