If you’ve been told you snore, chances are you already know you aren’t getting the type of quality sleep you need. When we’re asleep, the muscles in our necks relax. Sometimes, they relax so much that the upper airway (the nose and throat) partly closes, becoming too narrow for enough air to travel through to our lungs. This could be caused by temporary reasons, such as swollen tonsils or excess weight around the neck, or structural reasons, such as the shape of your nose or jaw. This narrowing of your airway causes a vibration in the throat, which causes the sound of snoring.