When you buy through our links, we may earn a commission. An affiliated entity may offer products or services. Learn more.
Zyppah and SnoreRx Plus cost almost exactly the same ($99.95 vs $99.99), but they are built on different ideas. SnoreRx Plus is a pure jaw-advancing mouthpiece that you fine-tune in 1 mm steps, with a hinge so your mouth can open during the night. Zyppah holds your jaw in one slight, fixed position and adds an elastic band that rests over your tongue.
How we tested: We bought and tested SnoreRx Plus ourselves (see our hands-on notes and video review below). We haven’t tested Zyppah; its details come from the maker’s specs and its FDA records.
For most adults with healthy teeth, SnoreRx Plus is the better buy, because you can correct the jaw position if your first setting is too weak or too strong. Zyppah makes more sense if you want its much longer 91-day trial, or you have already tried a jaw-only device and suspect your tongue is part of the problem.
Bottom line: SnoreRx Plus takes it overall (9.0 vs 7.6), leading most on comfort and best suited for maximum adjustability. Choose Zyppah if jaw + tongue combo is your priority.
Links marked “Check price” are affiliate links; we may earn a commission at no extra cost to you.
Quick Verdict: Zyppah or SnoreRx Plus?
- Choose SnoreRx Plus if you want control. It starts at 1 mm of advancement and moves forward one numbered step at a time, so you can stop at the smallest setting that quiets your snoring. The hinge also makes it less claustrophobic than a locked tray.
- Choose Zyppah if you want a gentle, set-and-forget jaw position plus a tongue band, and you value a 91-day money-back window over adjustability.
- Choose neither if you wear dentures, have loose teeth, gum disease or jaw-joint (TMJ) problems, or might have sleep apnea. See who should skip both below.
- Our hands-on test: SnoreRx Plus cut our tester’s snoring by more than 70% at its default setting. We haven’t tested Zyppah.
Zyppah vs SnoreRx Plus: Side-by-Side
| Feature | SnoreRx Plus | Zyppah |
|---|---|---|
| Type | Hinged mandibular advancement device (MAD) | Hybrid: slight jaw advancement + elastic tongue band |
| Maker | Apnea Sciences (California) | Zyppah (designed by Dr. Jonathan Greenburg) |
| Price | $99.99 (2 for $154.98) | $99.95 (double pack $190.00) |
| Money-back guarantee | 30 nights, direct purchases | 91 days, direct purchases |
| Jaw advancement | 1 mm factory setting, adjustable in 1 mm steps | Slight and fixed |
| Adjust after fitting? | Yes, any night, without re-molding | No (re-molding improves grip, not advancement) |
| Tongue component | None | Elastic band across the back of the tray |
| Mouth opening | Hinge allows vertical opening | One-piece tray, no hinge |
| Fitting | Boil-and-bite, two attempts | Boil-and-bite, can be re-molded |
| FDA status | Sold as FDA-cleared for snoring (SnoreRx line) | 510(k) cleared for snoring, K182312 |
| Replacement | No published lifespan | Every 4–6 months (maker guidance) |
| Our overall score | 9.0 / 10 | 7.6 / 10 |
Prices checked on the makers’ websites in October 2026. They change, so confirm at checkout.
Two Different Ways to Keep the Airway Open
Snoring is the sound of relaxed tissue at the back of the throat vibrating as air squeezes past. Two things narrow that space while you sleep: the lower jaw drops back, and the tongue, which is attached to it, slides back too. Our guide to how snoring mouthpieces work covers the anatomy.
SnoreRx Plus: one mechanism, finely tuned
SnoreRx Plus is a mandibular advancement device. It grips your upper and lower teeth and holds the lower jaw forward, which pulls the base of the tongue forward with it. What sets the Plus apart from the original SnoreRx is its three-tray design. The upper tray hooks onto the back of the middle tray, and that joint acts as a hinge, so you can open your mouth slightly, swallow and yawn. The trays also come apart for cleaning.
Zyppah: two mechanisms, neither adjustable
Zyppah’s tray gives a slight forward jaw position, and a stretchy silicone-enhanced band across the back rests on top of your tongue. The company calls it a “seatbelt for the tongue.” Unlike a suction tongue-stabilizing device, the band does not pull your tongue out between your lips. It sits over the tongue and discourages it from falling back.
The idea is reasonable: if the tongue is a big part of your snoring, a second line of defense could help when a gentle jaw position alone is not enough. The trade-off is that neither part can be tuned. You cannot add more jaw advancement, and you cannot change how the band sits.
Fit and Adjustment: the Biggest Practical Difference
The right amount of jaw advancement differs from person to person. Too little and the airway still narrows. Too much and your jaw joint and teeth take extra strain. How each device handles that guess is what separates them.
SnoreRx Plus
- Fitting: bring a mug of water to a full boil in the microwave, submerge the device for exactly 1 minute, dip it in cool water, bite for 30 seconds, then set it in cool water for 5 minutes. You get two fitting attempts.
- Adjusting: unhook the upper tray, squeeze the “SQUEEZE” marks on the middle tray and slide the lower tray to the next number. The instruction booklet says to wear each setting for three to five nights before moving on, and that most people settle between 3 and 5 mm.
- If your jaw aches: move back one step. No re-molding needed.
Zyppah
- Fitting: heat water until almost boiling, take it off the heat, soak the Zyppah for about 40 seconds, lift it out by the tongue band, then bite firmly for about 60 seconds and rinse in cool water.
- Adjusting: there is nothing to adjust. If it feels loose, the maker’s advice is to re-mold it for a snugger impression.
- If snoring continues: you have no way to increase the advancement. That is the most common reason buyers move from Zyppah to an adjustable MAD.
Our step-by-step guides on fitting and adjusting a snoring mouthpiece apply to both.
Winner for fit and adjustment: SnoreRx Plus.
Comfort: Hinge vs Tongue Band
We score SnoreRx Plus 8.8 for comfort and Zyppah 7.2. Both cause the usual first-week effects of any jaw device: some morning jaw or tooth soreness, extra saliva, and a bite that feels slightly off for a while after you take it out. The differences are specific to each design.
- The tongue band is make-or-break. Buyers commonly report either forgetting about it after a few nights or never getting past an irritating or gag-inducing feeling. Zyppah’s support pages say most people adapt within about a week. Its 91-day guarantee gives you time to find out.
- The hinge helps people who feel trapped. Rigid two-tray devices hold the mouth shut. Being able to open slightly on SnoreRx Plus makes swallowing easier, which can help with early drooling.
- Gentle vs tunable. Zyppah’s slight advancement can be easier on the jaw than an aggressively set MAD. SnoreRx Plus gets the same benefit by starting at 1 mm, and it can go further if needed.
- Bulk. SnoreRx Plus is a fairly bulky device. Buyers with a pronounced overbite are among those who report trouble adapting.
Soreness that lasts beyond the first couple of weeks, or a bite that does not return to normal, is a reason to stop and see a dentist. See jaw pain from a snoring mouthpiece.
Winner for comfort: SnoreRx Plus, unless you specifically want the tongue band.
Cost Over the First Year
The sticker prices are four cents apart, so the real difference is how long each device lasts and how long you have to return it.
- Zyppah says to replace it every 4–6 months with nightly use. At the single-unit price, that works out to about $200–$300 a year, or $190 if two units from the double pack cover your year.
- SnoreRx Plus does not publish a lifespan. Boil-and-bite devices like it are generally expected to last around a year with nightly use, less if you grind your teeth. The two-pack ($154.98) gives you a spare.
- Trial length favors Zyppah: 91 days against 30 nights. Zyppah’s guarantee covers direct purchases, needs a return authorization (RMA) number, and you pay return shipping. SnoreRx Plus refunds the product price, not shipping, for new customers who bought at snorerx.com.
Our guide on how long snoring mouthpieces last explains the signs that a device needs replacing.
Winner for value: SnoreRx Plus for long-term use; Zyppah if a long, low-risk trial matters most.
Is Zyppah Still in Business?
Yes. When we checked on October 24, 2026, zyppah.com was taking orders for the Zyppah mouthpiece ($99.95), a double pack ($190.00), and bundles with nasal strips and mouth tape, with free shipping on orders over $85 and the 91-day money-back guarantee. The company says Zyppah is not sold in stores. Buying direct is the simplest way to stay covered by that guarantee.
Who Should Buy Each One
SnoreRx Plus suits you if…
- You snore most nights and plan to wear a mouthpiece long term.
- You have tried a fixed device that either did not go far enough or made your jaw sore.
- You dislike having your mouth locked shut by a rigid tray.
Zyppah suits you if…
- You want both a jaw and a tongue component in one device and do not need to fine-tune either.
- You want three months to decide.
- You are happy to replace the device a few times a year.
Our Hands-On Test: SnoreRx Plus
We bought SnoreRx Plus and tested it ourselves. It arrived with the fitting handle already in place, plus a case and instructions. We fitted it with a cup of water boiled in the microwave: 60 seconds in the water, a firm 30-second bite and 5 minutes in cool water, which left a clear impression of the teeth. Tested at the factory default setting, with no extra advancement, our recordings consistently showed snoring reduced by more than 70%. If you do advance it, the instructions say to go 1 mm at a time, every few nights.
Full details, photos and screenshots are in our SnoreRx Plus review.
What our testing adds to this comparison: SnoreRx Plus is the one we have used, and it worked well before any extra advancement. Our Zyppah notes come from the maker and the FDA, not our own nights.
One tester’s nights are a real-world example, not a clinical trial. Snoring varies from person to person and night to night, and a snoring app or fingertip oxygen recording is not a sleep test.
Who Should Skip Both
Both devices grip the teeth and move the jaw, and both are cleared only to reduce snoring in adults. Talk to a dentist or doctor first, or choose a different approach, if you:
- Are under 18.
- Wear dentures or braces, or have loose teeth, abscesses or gum disease. Implants, crowns or caps need your dentist’s approval.
- Have a history of TMJ disorder. See snoring mouthpieces and TMJ.
- Have central sleep apnea or another breathing disorder.
- Snore loudly with gasping, choking or pauses in breathing, or feel very sleepy during the day. Snoring can be a sign of obstructive sleep apnea, so get a sleep test before treating it yourself. Read can snoring mouthpieces treat sleep apnea?
If your teeth or jaw rule out a MAD, a tongue-only device such as Good Morning Snore Solution works without gripping the teeth.
Frequently Asked Questions
Is Zyppah better than SnoreRx?
For most people, no. SnoreRx Plus scores 9.0 overall in our ratings and Zyppah 7.6, mainly because SnoreRx Plus can be adjusted in 1 mm steps after fitting. Zyppah’s advantages are its tongue band and its 91-day guarantee. If you are weighing Zyppah against the cheaper original SnoreRx, see SnoreRx vs Zyppah.
Is Zyppah still in business in 2026?
Yes. As of October 24, 2026, Zyppah’s own website was selling the mouthpiece at $99.95 with a 91-day money-back guarantee.
Can you adjust Zyppah?
No. Its jaw advancement is slight and fixed. You can re-mold it to improve the grip on your teeth, but you cannot move the jaw forward in steps the way you can with SnoreRx Plus.
Which lasts longer, Zyppah or SnoreRx Plus?
Zyppah’s maker recommends replacing it every 4–6 months. SnoreRx Plus has no published lifespan; similar boil-and-bite devices typically last around a year. Grinding your teeth shortens both.
Does the Zyppah tongue band make it more effective?
It may help if your tongue is a major cause of your snoring, but there is no head-to-head study against SnoreRx Plus. Zyppah’s advertised 91% figure comes from a company-linked study of self-reported results over 10 days, which we explain in SnoreRx vs Zyppah.
Can either one treat sleep apnea?
No. Both are sold to reduce snoring in adults, and neither maker markets them as a sleep apnea treatment. If you might have apnea, see a doctor; a dentist-fitted oral appliance or CPAP may be appropriate (see sleep apnea mouthpiece vs CPAP).
Related Comparisons
- SnoreRx vs Zyppah (the cheaper original model)
- VitalSleep vs Zyppah
- Zyppah vs ZQuiet
- Zyppah vs Good Morning Snore Solution
- SnoreRx vs SnoreRx Plus
- SnoreRx Plus vs VitalSleep
The Bottom Line
At the same price, SnoreRx Plus gives you more to work with: numbered 1 mm adjustment, a hinge and trays that come apart for cleaning. Zyppah is a credible, FDA-cleared alternative with a tongue band and a generous 91-day trial, but its fixed advancement leaves you stuck if the first fit is not enough, and it needs replacing every few months.