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Jaw relaxes back
As your lower jaw relaxes back, the airway can narrow.
HOW IT WORKS
Address the Mechanics Behind Snoring
If nasal strips, mouth tape, or a different pillow haven’t changed much, there may be a reason: they don’t change what your jaw is doing while you sleep.
If nasal strips, mouth tape, or a different pillow haven’t changed much, it’s not you. They don’t target the root mechanics behind snoring: soft tissue vibrating in your throat as the airway narrows.
As your lower jaw relaxes back during sleep, the airway can become narrower and soft tissue can begin to vibrate. That vibration is the sound you hear as snoring.
DIFINEY gently holds your lower jaw forward, helping create more room for airflow and reduce the vibration behind the noise. Instead of simply working around snoring, it addresses the mechanics behind it.
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Tissue vibrates
Soft tissue can start to vibrate.
That vibration is the sound you hear as snoring.
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DIFINEY holds jaw forward
Creates more room for airflow and helps reduce that vibration.
It changes the mechanics behind the noise so you can sleep in peace.
CUSTOM FIT
Easy to mold.
Easy to try again.
At-home fitting in minutes. No clinic visit, no tools, no special equipment.
All you need is hot water and a few minutes. If the first fit doesn’t feel right, simply reheat and remold it up to 3 times.
Remold up to 3×
Your first fit doesn’t have to be perfect.
PERSONALIZED FIT
Personalized to Your Bite. Not Just Any Bite.
Custom fit for comfort that lasts through the night.
The material molds around your own teeth for a closer, more secure fit, helping reduce shifting or loosening while you sleep.
reported a more comfortable and secure fit*
Compared with an unmolded mouthpiece.
*Based on an internal customer survey comparing molded vs. unmolded mouthpieces. Individual results may vary.
Smooth, generic shape
Your unique tooth impressions
Drag to compare
ADJUSTABLE FIT
Find your starting setting
Your best setting is the lowest comfortable one that helps reduce your snoring.
Suggested pace
Follow your model’s instructions. Move forward only if snoring continues and your current setting feels comfortable. Stay at a lower setting whenever it is working for you.
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Nights 1–3
1 mm
Get used to the fit. Keep the same setting while you adapt.
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Nights 4–6
2 mm, if needed
Increase only if snoring continues and 1 mm feels comfortable.
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Nights 7–9
3 mm, if needed
Take the next step only if you still need it and feel comfortable.
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After night 9
Adjust gradually
If needed, increase by 1 mm after another 2–3 comfortable nights. Stay within your model’s range. Stop increasing when snoring improves.
Is a Mandibular Advancement Device (MAD) Right for You?
A quick fit and safety check before you order.
Product suitability
Great Fit
Great for You If A Good Fit If
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You snore regularly and want a real solution
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You've tried nasal strips, but they didn't work
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You have mild to moderate obstructive sleep apnea (OSA)
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You want something simpler than CPAP
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You value comfort and adjustability
Because snoring leads to:
- Low-quality sleep and daytime fatigue
- Morning discomfort (dry mouth, headaches)
- Strain on relationships
- Reduced focus, energy, and overall well-being
Not For
Not Recommended If
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You are under 18 years old
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You have severe respiratory conditions
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You have damaged or weakened teeth, or gum disease
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You have oral infections, mouth sores, or bleeding gums
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You have had recent dental work or implants within the past 3 months
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You wear dentures, braces, or another oral appliance
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You have TMJ/TMD, jaw pain, or teeth grinding
If you're unsure, we always recommend showing our specs to your dentist. Your Health Is Our Priority. If you’re unsure, show the product specifications to your dentist.
60-SECOND CHECK
Not sure? Take the quick check for a personalized recommendation.
SLEEP Comfortably · CONFIDENTLY · ANYWHERE
Peace at Home
partner-friendly · family-friendly
Better Rest in Transit
LONG-HAUL TRAVEL · REST ON THE GO
Comfort Away
weekend away · short trip · overnight stay
Peace at Home
partner-friendly · family-friendly
Better Rest in Transit
LONG-HAUL TRAVEL · REST ON THE GO
Comfort Away
weekend away · short trip · overnight stay
A little help getting started
What if it feels unfamiliar at first?
Start low and give yourself time to adapt. The fit should feel secure, without sharp pressure or restricted breathing. Do not push through pain.
Can I try molding it again?
Yes. DIFINEY can be reheated and remolded up to three times. Follow your model’s fitting instructions carefully, including heating and cooling times.
What if my jaw or teeth feel sore?
Remove the mouthpiece and let your jaw relax. Do not increase the setting while sore. For strong, worsening, or persistent discomfort, stop use and speak with a dentist.
Choose Your DIFINEY
Both models use a boil-and-bite fit. Compare their adjustment ranges below.
View DIFINEY 4.0DIFINEY 4.0 Advanced Anti Snoring Mouthpiece
1–6 mm adjustment
View DIFINEY 2.0DIFINEY 2.0 Boil-and-Bite Anti-Snoring Mouthpiece
1–4 mm adjustment
