How a blocked nose damages
your smile and teeth.
SONU uses sound to relieve nasal congestion so you can breathe through your nose at night. Your mouth stays closed, so saliva can protect your teeth and gums. FDA-cleared. 2× better than placebo in a randomized trial.
Get SONU — $299Four steps from a stuffy nose to a dental problem
Blocked nose
Congestion makes nasal breathing an effort — especially lying down.
Open mouth
The body takes the path of least resistance — all night, without you knowing.
Saliva dries up
The mouth's rinse cycle stops. Acid isn't neutralized; pH falls for hours.
Enamel and gums pay
Dental research links open-mouth breathing to more plaque, gum bleeding and early decay.
SONU acts on step one
FDA-cleared to relieve nasal congestion — drug-free, 15 minutes a day — so nasal breathing is possible again.
Which mouth do you wake up with?
Brushing handles four minutes a day. Saliva handles the rest — but only with the mouth closed, and the mouth only stays closed when the nose is clear.
What SONU actually does
SONU Band is an FDA-cleared medical device. It uses acoustic resonance tuned to your own anatomy to relieve nasal congestion, runny nose, nasal itching and sneezing — the symptoms that block the nose in the first place. Fifteen minutes a day, no drugs, no sprays.
Twice the improvement in Total Nasal Symptom Score versus placebo in a randomized controlled trial.
Response rate — the share of trial participants whose nasal symptoms improved.
Physician endorsements. TIME 2025 Best Invention.
The research behind the chain
- Simulated night-time mouth breathing lowers intraoral pH during sleep compared with nasal breathing — a proposed risk factor for erosion and caries.Choi JE et al. J Oral Rehabil 2016;43:356–63
- Reduced salivary flow and loss of lip seal are linked to greater gingival inflammation and higher plaque scores.J Indian Soc Periodontol 2018;22(5)
- Systematic review of 11 studies: mouth breathing associated with increased gingival bleeding, plaque accumulation and gingival alterations, with associations to early and advanced caries lesions.Kimura et al. Int J Paediatr Dent 2025
- Breathing route influences dentofacial development — one reason airway assessment is now part of dental and orthodontic practice.Lin L et al. Front Public Health 2022;10:929165
These studies describe associations between breathing route and oral outcomes at a population level. They are not studies of SONU Band. SONU is indicated to relieve nasal symptoms; it is not indicated to treat, prevent or reverse caries, periodontal disease, dry mouth or any dental or craniofacial condition.
Try it for a full [GUARANTEE-WINDOW]. If it's not for you, send it back.
Use SONU daily for fifteen minutes. If your nose isn't noticeably clearer within the guarantee window, return it for a full refund. No prescription needed.
[GUARANTEE-WINDOW] guaranteeFree shippingNo prescriptionDoes SONU treat cavities, gum disease or dry mouth?
No. SONU is cleared to relieve nasal congestion and other nasal symptoms — step one of the chain. The dental effects described above are what research associates with open-mouth breathing generally. Brushing, flossing and dental visits remain the treatment for your teeth. If dry mouth persists, see your dentist or physician.
How do I know if I sleep with my mouth open?
Common signs people report are waking with a dry mouth or throat, a stuffy nose at bedtime, or a partner noticing. Your dental team can also look for signs at your next exam. SONU is worth trying if a congested nose is part of the picture.
Can I keep using my allergy medication?
Yes. SONU is drug-free and can be used alongside your current routine. Never stop a prescribed medication without talking to your clinician.
How long does it take to work?
Most people feel a difference during or shortly after a fifteen-minute session. In the pivotal trial, benefit built with consistent daily use.
Clear the nose.
Close the mouth. Protect the smile.
FDA-cleared · Drug-free · 15 minutes a day · [GUARANTEE-WINDOW] money-back guarantee
Get SONU — $299SONU Band is an FDA-cleared medical device indicated for the relief of nasal symptoms including nasal congestion, rhinorrhea, nasal itching and sneezing. It is not indicated to treat caries, periodontal disease, dry mouth, obstructive sleep apnea or snoring, and is not a substitute for dental care or any therapy prescribed by a licensed clinician. Do not discontinue prescribed treatment without speaking to your clinician. Individual results vary.
"2× better than placebo" and "81% response rate" are from the SONU Band pivotal randomized controlled trial, measured by Total Nasal Symptom Score. Cited dental literature describes population-level associations between breathing route and oral outcomes and does not evaluate SONU Band.