How does the SmartGuard Rx work?

It is a mandibular advancement device. The molded mouthpiece holds your lower jaw slightly forward, which keeps the airway open and can reduce snoring. You set the amount with one of six bars in 1 mm steps.

Can I remold it if the fit is wrong?

Yes. SmartGuard allows up to three molding attempts. Reheat the device and reshape it, but stop after three tries, since repeated heating weakens the fit.

Is it safe for everyone?

It is for adults 18 and older. Skip it if you have loose teeth, gum disease, dentures or jaw joint problems, and see a dentist or sleep doctor if snoring comes with pauses in breathing or daytime sleepiness.

Rinse it after each use and brush it with a soft toothbrush and cool water. No sterilization method is listed, so avoid hot water or dishwashers once molded, which can warp the shape.

How long does it last?

SmartGuard rates the device for at least 12 to 18 months of nightly use and backs it with a one-year warranty. Inspect it for cracks or looseness and replace it when the fit degrades.

How is it different from a dentist-made appliance?

A custom lab appliance is molded from a dental scan and is slimmer and more precise. The SmartGuard is self-fitted and adjustable, so it costs less but fits less exactly and is bulkier.

Where is the SmartGuard Rx Anti-Snore Device cheapest?

At eBay, for $34.79, 40% under what the other stores charge, as of our latest check.

What do buyers say about the SmartGuard Rx Anti-Snore Device?

Rated 3.6 out of 5 from 35 ratings.

Where can I buy the SmartGuard Rx Anti-Snore Device?

10 stores we checked sell it, including Amazon, Sleep Doctor, Sleeplay, Walmart, CVS Pharmacy.

SmartGuard Rx Anti-Snore Device

Best price now

$34.79at eBayChecked Nov 9

40% under what the other stores charge

Compared across 10 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission.

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What reviewers say

3.6 / 535 ratings

Ratings sit around 3.6 out of 5, and the comments split along fit. Owners who get a good mold say snoring drops and they sleep better; others say it loosens, feels bulky or leaves the jaw sore in the morning.

What people mention

FitMixedOwners who mold it well report a snug fit, while others say it loosens and shifts during the night.
Snoring reliefMixedSome report much quieter breathing; others see little change even at larger advancement settings.
ComfortCriticisedSeveral users describe jaw soreness, dry mouth and a bulky feel in the first weeks.
MoldingPraisedThe boil-and-bite process is quick, and the printed steps and video make it easy to redo.
DurabilityMixedA few owners report wear or cracking well before the stated 12 to 18 months.

About the SmartGuard Rx Anti-Snore Device

The SmartGuard Anti-Snore Device is a dentist-designed mouthpiece that helps reduce snoring by gently repositioning the lower jaw to keep the airway open during sleep. Made from durable, BPA-free thermoplastic and custom-fitted at home, this device offers a non-invasive solution for those seeking quieter, more restful nights. Its slim, adjustable design makes it easy to wear and ideal for back sleepers or anyone affected by snoring due to jaw or tongue positioning.

Product Specs

Dimensions: 3.75” x 2” x 6”

Weight: 3.88 oz

Materials: BPA-free, medical-grade polycarbonate (PC) and Ethylene-vinyl acetate (EVA)

Key Benefits

Customizable Comfort: The SmartGuard Rx Anti-Snore Device is designed to mold to the unique arch of each user’s mouth, providing a custom fit for superior comfort. Its slim, adjustable design makes it easy to wear night after night.

Effective Anti-Snoring Solution: Backed by years of testing, the SmartGuard Rx gently holds the lower jaw forward to keep the airway open during sleep, helping reduce snoring in 96% of users.

Easy to Use: SmartGuard is simple to fit at home in just 10 to 20 minutes, using the included printed instructions or step-by-step video. Once molded, the device is easy to wear and designed for nightly use.