Snoring affects approximately 44% of men and 28% of women aged 30–60 and is one of the most common sources of sleep disruption for bed partners. The right solution depends almost entirely on what's causing the snoring — the same device that resolves one type of snoring will have zero effect on another. This guide identifies the main causes and matches each to the solutions with the best evidence.
Important first step: Snoring accompanied by witnessed breathing pauses, gasping, or choking at night, combined with daytime sleepiness, strongly suggests sleep apnea. This should be evaluated medically before treating as simple snoring. See our article on sleep apnea symptoms for the indicators.
Why Snoring Happens
Snoring is the sound of turbulent airflow through a partially obstructed upper airway. During sleep, the muscles of the throat, tongue, and soft palate relax. If they relax too much, the airway narrows and the passing air causes the soft tissues to vibrate. The location and degree of obstruction determines the character of the snoring and what will reduce it.
Cause 1: Sleeping on Your Back (Most Common)
The supine position causes the tongue and soft palate to fall backward by gravity, narrowing the posterior airway. An estimated 60% of snorers snore primarily or exclusively when supine.
Solution — Positional therapy:
- Sleep on your side. A body pillow placed against your back physically prevents rolling supine.
- Sew a tennis ball or pool noodle section into a pocket on the back of a sleep shirt — uncomfortable when supine, trains side sleeping.
- Vibration-based positional devices (Smart Nora, Night Shift) detect supine position and provide gentle vibration prompting a position change. These have the best evidence for comfort and compliance.
- A wedge pillow that slightly elevates the head reduces airway collapse even in supine position.
Cause 2: Nasal Congestion or Obstruction
When nasal passages are blocked — from allergies, a deviated septum, or mucosal swelling — the body defaults to mouth breathing. Mouth breathing bypasses the nose's natural airway-supporting structures and causes the posterior airway to narrow. Nasal obstruction is a significant amplifier of snoring severity.
Solutions:
- Nasal strips (Breathe Right): External nasal dilators that mechanically open the nasal passages. Inexpensive, OTC, and effective specifically for nasal obstruction-driven snoring. They won't help if the obstruction is in the throat. See nasal strips on Amazon →
- Internal nasal dilators: Soft silicone inserts that open the nostrils from inside. More effective for some than external strips.
- Nasal saline rinse: Daily saline irrigation (neti pot or squeeze bottle) reduces mucosal inflammation and clears allergens.
- Allergy treatment: Nasal steroid sprays (fluticasone, budesonide — both available OTC) significantly reduce snoring in allergy sufferers when used consistently for 4–6 weeks.
- Humidifier: Dry air inflames nasal mucosa. A bedroom humidifier at 40–50% relative humidity reduces nasal congestion.
Cause 3: Alcohol and Sedatives
Alcohol is one of the most potent snoring amplifiers. It relaxes the pharyngeal muscles beyond their normal sleep relaxation, significantly worsening airway obstruction. Even two drinks in the evening can convert mild snoring to severe snoring in susceptible individuals. The effect is most pronounced in the first 2–3 hours after consumption as blood alcohol peaks.
Solution: Avoid alcohol within 3–4 hours of bedtime. The effect is immediate — many snorers find near-elimination of snoring on nights they don't drink. Sedating antihistamines and benzodiazepines have similar effects and should be avoided at night when snoring is a concern.
Cause 4: Excess Weight (Particularly Around the Neck)
Fatty deposits in the pharyngeal region narrow the airway diameter at baseline, making obstruction more likely during sleep. Men with neck circumference above 17 inches and women above 15 inches are at significantly elevated snoring and sleep apnea risk. Weight loss — even modest amounts — measurably reduces snoring severity in overweight snorers.
Cause 5: Oropharyngeal Muscle Laxity
Reduced tone in the tongue, soft palate, and pharyngeal muscles causes excessive collapse during sleep. This is partly age-related (muscle tone decreases with age) and partly structural.
Solution — Oropharyngeal exercises (Myofunctional therapy): Daily tongue and throat exercises have Level A evidence for reducing OSA and snoring. A 2015 meta-analysis in SLEEP found a 50% average reduction in AHI and significant snoring reduction with consistent exercise. Simple exercises include tongue presses to the palate (hold 5 seconds, 10 repetitions), tongue side-to-side movements, and vowel pronunciation (A-E-I-O-U aloud, repeatedly). These need to be practised daily for 8–12 weeks before results are apparent.
Devices With Evidence
- Mandibular advancement devices (MADs): Custom-fitted or boil-and-bite devices that hold the lower jaw forward, increasing the posterior airway. Effective for snoring and mild-moderate OSA. Custom devices (from a dentist) are substantially more effective and comfortable than OTC versions. See OTC options on Amazon →
- Tongue stabilising devices (TSDs): Hold the tongue forward (rather than advancing the jaw) — an alternative for people with TMJ problems. Less commonly used but effective for some.
- Smart Nora: A non-contact positional device that detects snoring sounds and gently inflates a pillow insert to prompt a position change. Well-reviewed and requires no facial contact.
For the specific devices we recommend for anti-snoring, see our guide on best anti-snoring mouthguards and chin straps.
About the author: Morgan Wells is a certified sleep analyst and wellness writer with over a decade of experience in behavioral sleep health. Learn more about Morgan.