Let your jaw go.

A wearable for teeth grinding and clenching.

Or reserve a first-batch cuff for $20. Refundable, and the first 100 are $50 off.

↓

1 in 3

Americans clench or grind their teeth in their sleep.

Journal of Clinical Medicine, 2024 ↗

Most people find out too late,
after irreversible damage.

A wearable solution to teeth grinding

01

Detect

The cuff senses the moment your jaw tightens, during the day and through the night.

On callsDrivingDeep focusPractice
02

Release

A gentle tap reminds you to let go, quiet enough that it does not wake you at night.

The nou cuff: one smooth gold C that hooks over the top of the ear and rests in the fold behind it.
Design render.

Worn like jewelry.
Built to help you.

  • Sits like an ear cuff. A gold arc along the top of your ear. No piercing.
  • Detects tension on its own. You don't have to catch yourself. The sensor and battery stay out of sight behind the ear.
  • Releases it with a quiet tap. No sound and no screen. You feel it, nobody else does.
  • Made for day and night. We are shaping it to lie flat for side sleepers, and testing it on ourselves first.
Reserve one from the first batch · $20

The first 100 cuffs are $199, $50 off the $249 launch price. Fully refundable. We’ll email you before anything ships.

Studied for over a decade.

A 2026 overview of 11 research reviews found that feedback timed to jaw activity consistently lowered jaw muscle activity, though it rated the quality of those reviews low. Journal of Oral Rehabilitation

In small studies, real-time cues, including gentle vibration, the cue nou uses, cut grinding during sleep. Each used a device in the mouth. nou brings the idea to a cuff you can wear day and night.

68%

fewer grinding episodes after 12 weeks of vibration feedback

Randomized pilot study of 24 people, Journal of Biomedical Research, 2015

61%

less grinding time per hour with real-time biofeedback

Aesyra study of 26 adults, no control group, company-announced, January 2026

46%

less grinding time at week 8 of vibration feedback, and 34% at week 12

14-week study of 20 people, no control group, Journal of Dental Sciences, 2024

Sleep. Brief wake-ups did not change much with vibration on, in a home sleep study of 13 people. In a longer study, some people slept worse in the first week of vibration, then it eased. Sleep and Breathing, 2019; Journal of Dental Sciences, 2024

During the day. Feedback from a jaw muscle sensor reduced daytime clenching habits in a randomized trial of 40 adults. BMC Oral Health, 2025

Everyday triggers. Stress, caffeine and heavy drinking each went with more clenching at night, in a study of 13,057 people. Chest, 2001

Musicians. 1 in 2 string and wind players report jaw trouble, rising with hours of practice. Journal of Oral Rehabilitation, 2021

All references
  1. 2026Aesyra, AesyBite Active study of 26 adults, company announcement (NCT06153810). Business Wire
  2. 2026Overview of 11 reviews of biofeedback for jaw pain and bruxism. Journal of Oral Rehabilitation
  3. 2025Biofeedback compared with botulinum toxin for awake bruxism, randomized trial. BMC Oral Health
  4. 2024Maejima et al., vibration feedback through an oral appliance, 14 weeks. Journal of Dental Sciences
  5. 2024Zieliński, Pająk and Wójcicki, global prevalence of bruxism, day and night. Journal of Clinical Medicine
  6. 2021Campos et al., jaw problems in musicians, 13 studies pooled. Journal of Oral Rehabilitation
  7. 2019International guidelines for using feedback devices for jaw activity. Journal of Oral Rehabilitation
  8. 2019Nakamura et al., vibration timed to jaw activity during sleep, pilot study. Sleep and Breathing
  9. 2015Gu et al., wireless vibration feedback for sleep bruxism compared with a splint, pilot study. Journal of Biomedical Research
  10. 2014Conti et al., electrical stimulation timed to jaw activity, pilot study. Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
  11. 2013Jadidi et al., electrical stimulation timed to jaw activity during sleep, randomized pilot. Acta Odontologica Scandinavica
  12. 2011Overnight sleep study with electrical stimulation timed to jaw activity. European Journal of Oral Sciences
  13. 2001Ohayon, Li and Guilleminault, 13,057 people, risk factors for night grinding. Chest

Questions

When can I get one?

We are building and testing the first units now. People who reserve hear first, then the waitlist. We will email you before anything ships.

How much will it cost?

$249 at launch. The first 100 cuffs are $199, and the $20 reservation comes off that.

Can I sleep on my side with it?

That is one of the first things we are testing. The pod is being shaped to lie flat behind the ear.

Will the tap wake me up?

It is meant to be gentle enough to let you relax without waking you. We are tuning it on ourselves before anyone else wears it.

Is nou a medical device?

No. nou is a general wellness product that shows you patterns in jaw tension. It does not diagnose or treat anything. Talk to a dentist or doctor about any health concern.

What does the $20 reservation get me?

One of the first 100 cuffs, numbered in the order people reserve. You lock in $199, $50 off the launch price, get 3 months of membership included, early access to our beta, and a direct line to the founders.

Does the $20 count toward the price?

Yes. Your $20 comes off the price of nou when you buy one. If you decide not to buy, you get it back.

Can I get my $20 back?

Yes, anytime. Email [email protected] from the address you reserved with and we refund the full $20 within 2 business days. Your bank may take 5 to 10 days to show it.

Will you charge my card again?

No. We do not keep your card on file. When nou is ready we email you the rest of the founding price, $179, and you decide then.

Anything else? [email protected]

Be among the first to wear nou.

Join the waitlist