Snoring: when it matters, when it is just noise, and what helps

Why snoring happens

Snoring is the sound of air squeezing past soft tissue that has relaxed and narrowed during sleep. As you drift off, the muscles of the tongue, soft palate and throat loosen; if the passage gets narrow enough, the air moving through makes those tissues flutter, and that flutter is the noise.

It is also extremely common. The American Academy of Sleep Medicine estimates that about half of people snore at some point in their lives, and that roughly 40 percent of adult men and 24 percent of adult women snore habitually; it runs in families and becomes more common with age. Most of it is a nuisance rather than a disease; the task is to work out which kind you have.

This article is about adults; a child who snores regularly should be checked by a doctor.

What makes snoring worse

Anything that narrows the airway or makes its walls floppier makes snoring louder.

• Sleeping on your back. Gravity pulls the tongue and soft palate backwards, closing down the space behind them.
• Alcohol. It relaxes the throat muscles beyond what sleep alone does, so the airway sags more easily; sleeping pills and other sedatives do the same.
• A blocked nose. A cold, allergies or a bent septum push you into mouth-breathing, which makes vibration more likely.
• Extra weight. Tissue around the neck and throat narrows the airway from the outside.
• Age. Throat muscle tone drops over the years, so the tissues collapse more readily.
• Smoking. It irritates and swells the lining of the nose and throat.

When snoring is just noise, and when it is not

Simple, or primary, snoring is vibration without any real interruption to breathing: air keeps moving, sleep stays largely intact, and the main casualty is the person in the other half of the bed.

Obstructive sleep apnea is different. The airway closes, fully or partly, over and over through the night, and each closure ends with a brief arousal as breathing restarts. The snorer rarely remembers these events, but feels them the next day.

The clues that snoring may be part of sleep apnea:

• Pauses in breathing that a partner notices, often followed by a snort or gasp.
• Choking or gasping that wakes you.
• Daytime sleepiness despite enough hours in bed.

If you have ever dozed or nearly dozed at the wheel, do not drive until you have been assessed, and see a doctor promptly.

Loud snoring on its own does not prove apnea, and quiet snoring does not rule it out, but snoring plus any of the above deserves attention. A sensible first step is the STOP-Bang self-check, an eight-question screen covering snoring, tiredness, observed pauses, blood pressure, body mass, age, neck size and sex. A score of 0 to 2 is low risk, 3 or 4 is intermediate, and 5 or more is high risk. It is a screen, not a diagnosis, but it flags who should be tested.

Testing means a sleep study, overnight in a lab or with a home sleep apnea test. Talk with your doctor if your snoring comes with pauses, gasping or sleepiness that intrudes on your day, or if a partner is worried about your breathing at night. Our overview of sleep apnea symptoms, risks and treatments explains what happens next.

Practical measures for simple snoring

If the red flags are absent, or a sleep study has come back clear, these measures have the best track record. Most people who improve combine two or three.

Sleep on your side

Side-sleeping keeps the tongue from falling back; the difficulty is staying there once asleep. A body pillow, wedge or firm pillow behind your back can hold you in place, and the old trick of a tennis ball sewn into the back of a T-shirt still works.

Clear your nose

If you snore mainly when congested, treat the congestion: manage allergies, and try adhesive nasal strips or internal dilators that hold the nostrils open. Decongestant sprays are for short-term use only. A nose that is always blocked, or blocked on one side, deserves an examination rather than another spray.

Time your alcohol

You need not give up drinking, but timing matters. Alcohol close to bedtime relaxes the throat just as you fall asleep, which is why the standard advice is to avoid it before bed. Finishing your last drink several hours earlier is a realistic compromise.

Mouthpieces need a doctor and a dental fitting

Mandibular advancement devices hold the lower jaw slightly forward during sleep, pulling the tongue away from the back of the throat, and they reduce snoring for many people. The American Academy of Sleep Medicine's guideline treats them as the next step once weight loss, side-sleeping and less alcohol have not been enough, and it expects a doctor to have assessed you first, since the two so often travel together. It suggests a custom, adjustable appliance fitted by a qualified dentist, with dental follow-up for tooth movement and bite changes; that advice is written for sleep apnea but is sensible for snoring too. One-size, boil-and-bite products bought online are what it steers away from.

Weight, smoking and the slow fixes

Losing extra weight and stopping smoking both reduce snoring, though not quickly. Treat them as long-term investments that help sleep in other ways.

If you are the one lying awake

Partners of snorers lose sleep too, and resentment builds when it is treated as a joke. Raise it in the daytime rather than at 3 a.m., and be the observer: note any pauses, gasps or choking sounds, because the snorer cannot report those. Earplugs, white noise, going to bed first and even separate rooms for a while are legitimate coping tools, not failures.

Coping is not the end of the road. Snoring that persists despite the measures above, or that is seriously damaging either person's sleep, is itself a reason to see a doctor even without apnea red flags: they can check the nose and mouth for a structural cause, offer a prescribed oral appliance or nasal devices, and refer you on if the cause is unclear.

In summary

Snoring is the vibration of relaxed throat tissue, made worse by back-sleeping, alcohol, nasal blockage, weight, age and smoking. In adults, most of it is noise. It becomes something else when paired with breathing pauses, gasping or daytime sleepiness; then a STOP-Bang self-check and a sleep study conversation are the right moves. For simple snoring, side-sleeping, a clear nose, earlier drinks and a doctor-assessed, dentist-fitted mouthpiece are worth your effort, and if they are not enough, see a doctor anyway.