What Is Snoring & Sleep Apnea?
Understanding what's happening in your airway is the first step toward better sleep.
Why Sleep Matters
Sleep is not wasted time. While you sleep, your heart slows and rests, your blood pressure drops, your body repairs itself, and your brain sorts memories and clears out waste. Good sleep helps you think clearly, stay healthy, and feel awake. Poor sleep does the opposite.
Most adults need 7–8 hours of sleep each night. If you sleep a full night and still feel exhausted, something may be wrong with the quality of your sleep — not just the hours.
What Is Snoring?
Snoring happens when air has trouble moving through your nose and throat. A constricted airway causes soft tissues to flutter and vibrate. Almost everyone snores occasionally — a cold, alcohol, or sleeping on your back can trigger it. But regular, nightly snoring is a sign the airway is partially blocked.
Snoring vs. Sleep Apnea — What's the Difference?
Snoring is a sound. Sleep apnea is a breathing problem. They often happen together but are not the same thing. The word "apnea" means a pause in breathing — no air entering the lungs even though you are trying. If your airway is blocked for 10 seconds or more, that is an apnea. If these events happen more than 5 times per hour, it's classified as obstructive sleep apnea (OSA).
Quiet snoring is not always safe snoring. Some people with serious sleep apnea barely snore at all — they have long, silent pauses instead of loud sounds. If your bed partner says you stop breathing, take it seriously even if your snoring is soft.
The Three Types of Sleep Apnea
Obstructive Sleep Apnea (OSA)
The most common type. The airway gets physically blocked when soft tissue and the tongue fall back during sleep. The body keeps trying to breathe, but air can't get through until the airway opens.
Central Sleep Apnea
The airway is open, but the brain doesn't send the signal to breathe. Less common than OSA and can be associated with heart problems or stroke.
Mixed / Complex Sleep Apnea
A combination of both types. A sleep doctor can identify and sort out the right diagnosis and treatment approach.
This page focuses on obstructive sleep apnea — the type a dentist specially trained in dental sleep medicine can help with most.
How an Apnea Happens
When you fall asleep, the muscles in your throat and jaw relax. For most people, the airway stays open. But for some, soft tissue, the tongue, or jaw position closes the airway. Oxygen levels drop, your brain sends an alarm, and you briefly arouse — shifting, snorting, or gasping. The airway opens. You take a few breaths. Then it closes again. This can happen hundreds of times a night, and most people have no memory of it. They just wake up tired.
What a Bed Partner May Witness
- Loud snoring that stops, then restarts with a big breath
- Snorting, gasping, or choking sounds
- Long silent pauses followed by a sudden gasp
- Restless movement or kicking
- Sitting up to breathe
Think This Might Be You?
Take our quick self-check quiz to see if a sleep study is worth discussing with your doctor.
Take the Quiz →