Snoring and upper-airway health

Most adults snore occasionally. A significant minority snore every night. Most snoring is benign and annoying rather than medically important, but a meaningful fraction reflects underlying obstructive sleep apnoea that is worth identifying. This article covers the physiology, the distinction between simple and worrying snoring, and what to do about each.

Why people snore

Snoring is vibration of soft tissues in the upper airway during breathing. As the airway partially narrows, the airflow speeds up (Bernoulli principle) and soft tissues (soft palate, uvula, posterior pharyngeal wall, base of tongue) flutter and vibrate. The sound is the result.

Narrower airways snore more. Collapse-prone airways snore worse. Certain anatomical features predispose: small lower jaw (retrognathia), large soft palate or uvula, enlarged tonsils, redundant soft tissue from weight gain, nasal obstruction forcing mouth breathing, large base of tongue.

Factors that worsen snoring

- Alcohol within 3 hours of sleep: relaxes upper airway muscles - Recent weight gain: adds soft tissue in the neck - Nasal congestion: forces mouth breathing and airway changes - Supine position: gravity pulls soft palate and tongue posteriorly - Muscle relaxants, sedatives: reduce airway muscle tone - Pregnancy, particularly third trimester - Ageing: progressive tissue laxity and muscle tone loss

Simple snoring vs sleep-disordered breathing

Simple snoring. Noise without collapse, without oxygen desaturation, without arousal. The patient sleeps well. The partner is the one who suffers. No cardiovascular or metabolic consequences beyond what weight and lifestyle alone would predict.

Upper airway resistance syndrome (UARS). Increased airway resistance without complete apnoea events, but with repeated arousals. Sleep is fragmented without dramatic desaturation. Produces daytime sleepiness and brain fog. Underdiagnosed category. WatchPAT tends to catch it through arousal patterns.

Obstructive sleep apnoea. Repeated partial or complete airway collapse with oxygen desaturation and arousals. Clinically significant, cardiovascularly important, treatable.

When snoring is worth investigating

Witnessed apnoea. Your partner has seen you stop breathing, gasp, or choke. Strong indication for sleep study.

Unrefreshing sleep despite adequate time. Waking tired even after 8 hours.

Excessive daytime sleepiness. Nodding off during activities you would normally be alert for.

Morning headaches. Frontal, dull, settling through the morning.

Unexplained nocturia. Multiple overnight waking to urinate.

Treatment-resistant hypertension. As discussed in the cardiovascular article.

New atrial fibrillation. Particularly under 60.

Safety-critical occupation. Lower threshold for investigation.

Partner reports "I sleep in the spare room". Relevant social indicator of severity.

When snoring is usually just snoring

Occasional snoring only when drunk, pregnant, or unwell. Positional snoring only on the back, easily resolved. Mild snoring in a healthy-BMI young adult with no daytime symptoms. Snoring that started after a specific cause (nasal surgery complication, weight gain) and has not progressed.

These usually do not need formal sleep investigation, though partner complaints may motivate other interventions.

What to do about simple snoring

Sleep position. Many snorers snore predominantly when supine. Positional therapy (tennis ball in pyjama pocket, specialised pillows or vests) helps a subset.

Weight loss. If BMI is elevated, a 10 percent weight loss typically improves snoring substantially.

Alcohol reduction. Avoid alcohol within 3 hours of bedtime. Effect is often immediate and noticeable.

Nasal airflow improvement. If nasal obstruction is part of the picture (chronic rhinitis, allergic rhinitis, deviated septum), addressing it helps. Nasal steroids, saline rinses, or ENT evaluation for surgical correction.

Mandibular advancement devices (MADs). Dental-fitted device holds the lower jaw forward. Effective for positional snoring and mild apnoea. Useful for simple snoring where other measures have failed.

Oropharyngeal exercises. Emerging evidence for structured exercises to improve soft palate and tongue tone. Effect is modest but real.

Smoking cessation. Smoking increases upper airway inflammation and snoring frequency.

What usually does not work

Over-the-counter nasal strips: minimal effect.

Sprays marketed as anti-snoring: no meaningful evidence.

Changing pillow type: minimal effect except at extremes.

Tongue-retaining devices: some evidence but poor long-term tolerance.

Most herbal remedies: no evidence.

When to refer to ENT

Persistent nasal obstruction not responsive to medical treatment. Large tonsils or adenoids relevant to apnoea in a specific patient. Polyp disease. Concern about structural abnormality. Young patients with significant sleep-disordered breathing where surgical correction might be curative.

The upper airway in apnoea treatment

For patients with diagnosed apnoea on CPAP who cannot tolerate the mask, upper airway optimisation (nasal surgery if indicated, nasal steroid use, humidification) often dramatically improves tolerance. We coordinate with ENT colleagues where indicated.

Surgical treatment of apnoea itself (UPPP, MMA, hypoglossal nerve stimulation) was covered in the CPAP / MAD / surgery article.

Snoring and relationships

Partner disruption from snoring is a significant quality-of-life issue that often goes unmentioned at medical consultations. It is worth addressing explicitly. Even when the snoring is not medically significant, effective management can transform bedroom dynamics and relationship quality.

If one partner is sleeping in the spare room regularly, that is a meaningful medical symptom, whether or not the snoring reflects underlying apnoea.

What we do

A sleep assessment at LoveMyLife takes snoring seriously even when the primary complaint is not snoring. We ask about it explicitly, we assess the pattern, and we ask about partner experience. Where the picture suggests apnoea, we arrange a WatchPAT study. Where the picture suggests simple snoring with good treatment options, we recommend appropriate first-line interventions.

The honest bottom line

Most snoring is benign, but a meaningful minority reflects important apnoea. Distinguishing the two is what a sleep assessment does. For simple snoring, straightforward interventions (weight, alcohol, position, MAD) usually resolve or substantially improve the picture. For apnoea-associated snoring, proper treatment of the underlying apnoea is what matters.

Ready to start?

If this article has made you think our assessment might help, the next step is a short consultation with one of our sleep-medicine doctors.

Begin your consultation at this link. Online with a WatchPAT One home study, or in person at Westfield London.