Snoring Treatments Tested in Trials: Who Improved and by How Much
Most “how to stop snoring” advice cites nothing. I wanted to see which snoring treatments have actually been tested, in whom, and by how much.
Here’s what I found when I read the trials and reviews one by one.
Key Takeaways
- Exercises have a real trial. A randomized trial of 125 people found orolingual exercises lowered a partner-based snoring score by 2.3 points versus finger exercises.
- A mouthpiece beat a combined routine in a pilot. Partners rated 91% of mouthpiece users as improved versus 58% in a nasal and positional routine.
- Alcohol worsens breathing in snorers. A meta-analysis of 14 trials found the rise in breathing disruptions was larger in snorers.
What Did the Exercise Trial Show?
A 2025 randomized trial enrolled 125 people with a history of snoring. They did either orolingual exercises or finger coordination exercises for six weeks.
Ninety-two people reached the final analysis, 51 in the exercise group and 41 controls. The snoring score at follow-up was 2.3 points lower in the exercise group (95% CI 0.6 to 3.9).
The secondary measures, including snoring index and apnea-hypopnea index from a home test, did not differ significantly. The authors noted that older participants seemed to benefit more.
An earlier systematic review of myofunctional therapy for snoring concluded that it reduced snoring in adults on both questionnaires and sleep studies. The abstract I could open gives no numbers, so I won’t quote any.
How Did a Mouthpiece Compare With a Combined Routine?
A pilot trial randomized 50 couples to a mandibular advancement device or to a combined routine of a nasal dilator, saline rinse with mometasone, mouth taping, and side sleeping. Forty-two couples completed four weeks.
Partners rated 21 of 23 snorers (91%) as much or very much improved on the device, versus 11 of 19 (58%) on the combined routine. The difference was 33 percentage points (95% CI 8 to 58).
Four of the ten people who withdrew did so because of side effects, two in each group.
It was small and short, so I treat it as a strong signal, not a verdict. For a broader look at fit, my digest on which anti-snoring device fits your snoring is the companion piece.
Does a Positional Pillow Change the Sound?
A 2015 study of 25 adults with positional sleep apnea tested a head-positioning pillow over three nights. The median snoring index fell from 218 to 115 events an hour.
In overweight participants, the subjective score improved but the objective index did not. That is a small group and a short test, so it isn’t proof for everyone.
What About Alcohol?
A meta-analysis of 14 randomized trials with 422 people found that alcohol raised the apnea-hypopnea index and lowered mean oxygen saturation. The increase was larger in snorers than in the full group.
A review of 13 studies with 279 patients linked alcohol to worse snoring severity and lower lowest oxygen saturation. This is the cleanest lifestyle signal I found.
What Is Still Missing?
Most of these trials ran for weeks, not months. Few measured what happens after people stop the treatment.
If you snore with gasping or pauses, a sleep test comes before any of this. My summary of what the research says about each cause of gasping explains why.
For nose-specific options, see what single trials show on nasal dilator strips and what mouth taping studies measured.
When Should You See a Doctor?
See a doctor if snoring comes with witnessed pauses, gasping, morning headaches, or heavy daytime sleepiness. A sleep test can separate simple snoring from sleep apnea.
Frequently Asked Questions
Your Next Step: Pick One Tested Change and Track It
Choose one change from this list and run it for two weeks. Ask your partner to rate each night, and take those notes to your doctor if the snoring continues.