4.0 Clear Advanced Anti Snoring Device, Adjustable Anti Snoring Mouthpiece Mouth Guard for Men and Women, Anti Snore Solution, 1 Pack
Best price now
34% under what the other stores charge
Compared across 3 stores. Prices are checked against each store and labelled with when.
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Quick answers
- Where is the 4.0 Clear Advanced Anti Snoring Device, Adjustable Anti Snoring Mouthpiece Mouth Guard for Men and Women, Anti Snore Solution, 1 Pack cheapest?
- At eBay, for $32.99, 34% under what the other stores charge, as of our latest check.
- Where can I buy the 4.0 Clear Advanced Anti Snoring Device, Adjustable Anti Snoring Mouthpiece Mouth Guard for Men and Women, Anti Snore Solution, 1 Pack?
- 3 stores we checked sell it, including Difiney, eBay, Amazon.
4.0 Clear Advanced Anti Snoring Device, Adjustable Anti Snoring Mouthpiece Mouth Guard for Men and Women, Anti Snore Solution, 1 Pack prices at every store
- eBayNew
In stock
$32.99Observed at 6:46 AM - DifineyNew
In stock
$49.98Free shippingObserved at 6:46 AM - AmazonNew
Availability unknown
$49.98Free shippingObserved Nov 1, 2026, 2:05 PM
4.0 Clear Advanced Anti Snoring Device, Adjustable Anti Snoring Mouthpiece Mouth Guard for Men and Women, Anti Snore Solution, 1 Pack price history
Lowest price we've seen: $26.00 on Nov 1; highest $32.99 on Nov 2. Tracked across 4 stores since Nov 1.
From Difiney
- Guides the lower jaw forward to help keep the airway open and reduce snoring
- Boil-and-bite custom fit molds to your own teeth in minutes at home
- 1–6 mm precision adjustment rail to fine-tune jaw advancement
- FDA Cleared and BPA Free
- Compact profile without the protruding side section of the 2.0 design
- Upgraded heat-moldable material fits closely to teeth and bite
- Materials
- Upgraded heat-moldable material; BPA Free
- Fit
- Custom boil-and-bite fit molded to your own teeth; adjustable 1–6 mm jaw advancement
- Sizing
- Start at the lowest comfortable setting (1 mm) and increase only every 2–3 nights if needed; most users settle between 2–4 mm. Remold if the fit feels loose or
- Care
- Reheat and remold up to 3 times; do not overheat; follow temperature and timing instructions
- Guarantee
- 90-day money-back guarantee; eligible manufacturing defects, molding issues, device failure under normal use, or items damaged on arrival may qualify for replac
- Returns
- Request a return or exchange within 90 days after delivery; you may mold and try the mouthpieces during this period; contact service@idifiney.com before sending
- Shipping
- Free U.S. shipping; orders typically ship from the St. Louis warehouse within 1–2 business days and arrive within 3–5 business days after shipping; tracking pro
- Packs
- 1 Device Starter Pack, 2 Devices, and 3 Devices bundles
- In the box
- 1 DIFINEY 4.0 device (1 Device option)
About the 4.0 Clear Advanced Anti Snoring Device, Adjustable Anti Snoring Mouthpiece Mouth Guard for Men and Women, Anti Snore Solution, 1 Pack
Innovative Snoring Solution: DIFINEY Advanced 4.0 gently advances your lower jaw to help create more space through the airway, improve airflow, and reduce snoring. With a design patent application filed, its patent-pending design brings a more advanced and customizable approach to nightly snore reduction.
Targets the Mechanics Behind Snoring: Rather than simply working around the noise, DIFINEY Advanced 4.0 supports the lower jaw in a slightly more forward position while you sleep. This helps create more space behind the tongue and soft palate, reducing the soft-tissue vibration that contributes to snoring.
FDA Cleared & BPA Free: DIFINEY Advanced 4.0 is FDA cleared and made with BPA-free materials, giving you added confidence in the quality and safety of the anti-snoring device you use each night.
Fully Customizable: Custom-fit the mouthpiece to your bite at home, then fine-tune the lower-jaw advancement from 1–6 mm. Its fully adjustable design gives you greater control over fit and positioning, helping create a comfortable setup tailored to your needs and improve sleep quality for all users.







