Sleep Apnea Devices: CPAP, Oral Appliances, Inspire & More

Q: What is the best device for sleep apnea?

For most adults, PAP (CPAP or APAP) is the most effective and best-studied option, and AASM strongly recommends it [1]. "Best" also means a device you will use nightly. If CPAP fails after real troubleshooting, a custom oral appliance or, for moderate to severe OSA, a hypoglossal nerve stimulator may fit better [2][7]. Decide with your sleep physician.

Q: Can I treat sleep apnea without a CPAP machine?

Often, yes. AASM recommends custom oral appliances rather than no treatment for adults who can't tolerate CPAP or prefer an alternative [2]. Implants, nasal EPAP and positional devices suit selected people [7][13][15]. Each still needs a diagnosis, a prescription, and follow-up testing to prove it works. Don't stop CPAP on your own.

Q: Do over-the-counter mouth guards work for sleep apnea?

The evidence is weak. AASM's guideline found custom appliances lower AHI more than non-custom ones, and the non-custom data came from just 42 patients [2]. Some store devices are FDA-cleared only to reduce snoring [5]. A quieter night can hide ongoing apneas, so see a sleep physician and a qualified dentist instead.

Q: Who is a candidate for the Inspire implant?

Under the current FDA label, adults 22 and older with moderate to severe OSA (AHI 15 to 100) who can't use or tolerate PAP may qualify, with a recommended BMI of 40 or lower. So may selected patients aged 18 to 21 and teens with Down syndrome [7]. You must not have complete concentric collapse at the soft palate [7]. Too many central apneas is a contraindication [8].

Q: Is there a sleep apnea device without a mask?

Yes. Oral appliances, hypoglossal nerve stimulators, nasal EPAP valves and positional devices all work without a mask or hose [2][3][13][15]. Each has a narrower group of ideal candidates than CPAP. Your AHI, airway anatomy, teeth, weight and sleep position all shape which mask-free option is realistic. A sleep specialist can review your study results with you.

Q: Can a smartwatch or ring diagnose sleep apnea?

No. Apple and Samsung have FDA-authorized features that flag possible signs of moderate to severe OSA [17][18]. FDA's review of the Samsung feature says it should not replace diagnosis by a qualified clinician [18]. AASM says unvalidated consumer devices can't diagnose or treat sleep disorders [16]. A flag means it's time for a proper sleep test.

Q: Is Provent still available?

No. Provent's maker ended manufacturing as of June 1, 2020, and the last units expired in September 2023 [14]. Prescription nasal EPAP alternatives such as Bongo Rx and ULTepap 2 are listed for mild to moderate OSA in adults [13]. Ask your clinician whether EPAP suits you and plan a follow-up test.

Sleep apnea devices fall into six main groups: positive airway pressure (PAP) machines like CPAP, custom oral appliances fitted by a dentist, implanted nerve stimulators such as Inspire, nasal EPAP valves, positional devices, and tongue devices. PAP is the most studied option and the usual starting point. For people who can't tolerate CPAP, sleep specialists recommend a custom oral appliance over no treatment at all [1][2].

Which device is right depends on how severe your sleep apnea is, the shape of your airway, your teeth, and what you will actually use every night. Almost every device that treats sleep apnea needs a diagnosis first, and most need a prescription.

Key takeaways

PAP (CPAP or APAP) is the best-studied device and the usual first choice. Alternatives work for selected people and still need a diagnosis, a prescription and follow-up testing.
A custom, dentist-fitted oral appliance has the best evidence among alternatives. Over-the-counter mouth guards are often cleared only for snoring.
Smart watches and rings can flag possible sleep apnea but cannot diagnose or treat it.

What are the different devices for sleep apnea?

Each row is covered in more detail below.

Six device groups shown as cards: PAP machine, custom oral appliance, hypoglossal nerve stimulator, nasal EPAP valve, positional device, tongue device — Figure 1. The six device groups. Wearables that screen for sleep apnea are not treatment devices.

Device	How it works	Best for	Evidence	Prescription needed (US)?
CPAP / APAP machine	Pressurized air through a mask holds the airway open	Most adults with obstructive sleep apnea (OSA), any severity	Strongest; AASM strong recommendation [1]	Yes
Custom oral appliance (mandibular advancement device)	Moves the lower jaw forward to open the airway	Mild to moderate OSA, or CPAP intolerance [2][3]	Good; AASM "standard" recommendation over no therapy for CPAP-intolerant adults [2]	Yes, prescribed by a physician and fitted by a dentist [2]
Hypoglossal nerve stimulator (Inspire, Genio)	Implant stimulates the nerve that moves the tongue forward	Moderate to severe OSA when PAP fails [3][7]	FDA-approved (PMA); STAR trial showed large AHI drops [9]	Yes, plus surgery
Nasal EPAP (e.g., Bongo Rx)	One-way valve adds resistance when you breathe out	Mild to moderate OSA in some adults [13]	FDA-cleared; more limited	Yes, for OSA-labeled products [13]
Positional device	Vibrates or blocks you from sleeping on your back	Apnea that is much worse on your back	Meta-analysis: AHI fell about 43% from baseline [15]	Varies by product
Tongue retaining device	Holds the tongue forward with suction	Selected cases; ask a dental sleep specialist	Limited [4][6]	Yes, when sold to treat OSA
Daytime tongue stimulator (eXciteOSA)	Trains tongue muscles while awake	Snoring and mild OSA (AHI under 15) in adults [11]	FDA De Novo authorization, 2021 [11]	Check with your clinician
Smart watch / ring / tracker	Screens for signs of apnea	Flagging possible risk only	Not a treatment [16]	No

Are PAP machines the main sleep apnea device?

Yes. Positive airway pressure is the most established treatment. The American Academy of Sleep Medicine (AASM) strongly recommends PAP over no therapy for adults with OSA and excessive sleepiness [1]. It recommends either fixed-pressure CPAP or auto-adjusting APAP for ongoing treatment [1].

Mayo Clinic describes CPAP as delivering "just enough air pressure to a mask to keep the upper airway passages open" [3]. BPAP (bilevel) uses one pressure for breathing in and another for breathing out [3].

Mask fit, leaks and dryness are common, fixable reasons people struggle. Our guide to sleep apnea machines compares models, and choosing a CPAP mask covers fit.

What are the best sleep apnea devices other than CPAP?

The best-supported alternative is a custom oral appliance. For moderate to severe OSA in people who truly can't use PAP, hypoglossal nerve stimulation is the main implant option [3][7].

Nasal EPAP and positional devices can help selected people with milder or position-dependent apnea. Tongue devices are niche options.

No alternative should replace CPAP without a conversation with your sleep physician. A device that cuts snoring can still leave dangerous breathing pauses untreated. See our overview of sleep apnea treatment for non-device options, too.

How does an oral appliance for sleep apnea work?

An oral appliance looks like a sports mouth guard or orthodontic retainer. The common type is a mandibular advancement device (MAD). It clips onto your upper and lower teeth and holds your lower jaw slightly forward. That pulls the tongue and soft tissues forward and keeps the airway more open.

Federal rules classify these as Class II devices, a group that also includes tongue retaining devices [4].

Who is a good candidate?

Mayo Clinic says oral appliances are an option for some people with mild or moderate sleep apnea. They can also suit some people with severe apnea who can't use CPAP [3].

The 2015 joint AASM and American Academy of Dental Sleep Medicine (AADSM) guideline makes these key points [2]:

Sleep physicians should consider prescribing an oral appliance, rather than no treatment, for adults with OSA who are intolerant of CPAP or prefer another therapy (STANDARD).
A qualified dentist should use a custom, titratable appliance over a non-custom device (GUIDELINE).
Qualified dentists should watch for dental side effects and bite changes (GUIDELINE).
Sleep physicians should do follow-up sleep testing to confirm the appliance works (GUIDELINE).
Patients should return for periodic office visits (GUIDELINE).

Do oral appliances work as well as CPAP?

They lower AHI, but usually less than CPAP does. A 2023 meta-analysis found oral appliances reduced AHI compared with baseline. It also found CPAP produced a greater AHI reduction than oral appliances overall [6].

Still, a device you wear beats one left on the nightstand. That is why the guideline backs oral appliances for adults who can't tolerate CPAP [2].

Custom vs over-the-counter sleep apnea mouth guards

Custom, dentist-made appliances. The AASM/AADSM guideline found custom appliances "achieve a greater reduction in AHI" than non-custom ones [2]. Custom titratable devices also showed a moderate improvement in quality of life [2]. A 2025 AADSM position paper says a proper appliance should advance the jaw "in increments of 1 mm or less" and keep "a verifiable protrusive setting" [21].

Boil-and-bite and online mouth guards. Evidence for non-custom devices for OSA rests on two small trials with 42 patients and wide confidence intervals [2]. Some store-bought devices are cleared only to reduce snoring. For example, one FDA-cleared over-the-counter device is labeled "intended for use by adults (18 years or older) as an aid to reduce snoring" [5]. That is not the same as treating sleep apnea.

The safe path: get a sleep study first, then a prescription, then a fitting with a dentist trained in dental sleep medicine. Mayo Clinic advises seeing "a dentist experienced in dental sleep medicine appliances for the fitting and follow-up therapy" [3].

Side effects to know

Most oral appliance side effects are dental, such as tooth movement or bite changes [2]. A qualified dentist can pick or modify a device for issues like metal or acrylic allergies, grinding, or unusual anatomy [2]. Regular follow-up catches problems early [2].

What is the Inspire implant for sleep apnea?

Inspire is a hypoglossal nerve stimulator, sometimes called upper airway stimulation. A small device is implanted in the chest. Mayo Clinic explains: "When you inhale, the device stimulates the nerve that controls the movement of the tongue" [3]. The tongue moves forward and keeps the airway open. You turn it on at bedtime with a remote.

How well does it work?

In the STAR trial of 126 adults who had trouble with CPAP, AHI fell 68% at 12 months, from 29.3 to 9.0 events per hour [9].

Who qualifies for Inspire? (Current FDA criteria)

FDA approved an expanded Inspire label on June 8, 2023 [7]. It covers:

Adults 22 and older with moderate to severe OSA (AHI 15 to 100) who can't use or tolerate PAP or BiPAP [7].
Ages 18 to 21 with the same AHI range, who are not candidates for adenotonsillectomy and have considered other standard treatments [7].
Ages 13 to 18 with Down syndrome and severe OSA (AHI 10 to 50) who meet similar conditions [7].
People without complete concentric collapse of the soft palate [7]. This is usually checked with a sleep endoscopy before surgery [9].

The 2023 approval also raised the recommended upper limit for body mass index (BMI) from 32 to 40 [7]. The manufacturer adds that central plus mixed apneas above 25% of the total AHI is a contraindication, and that safety and effectiveness for people with a BMI over 40 "is unknown at this time" [8].

Our explainer on central vs obstructive apnea covers why central events matter.

Is there a newer implant than Inspire?

Yes. Nyxoah's Genio system received FDA approval in August 2025 for a subset of adults with moderate to severe OSA and an AHI from 15 to 65 [10]. Like Inspire, it stimulates the hypoglossal nerve. Ask an ENT surgeon which system fits your anatomy.

Is there a sleep apnea device for your nose?

Yes: nasal EPAP (expiratory positive airway pressure) valves that sit in or over the nostrils. Air flows in easily, but breathing out meets resistance. That back-pressure helps keep the airway open.

Provent is no longer sold. Its maker announced the end of manufacturing as of June 1, 2020 [14]. The last batch expired September 16, 2023 [14]. Many older articles still recommend it.

What is available now. A 2026 industry guide lists two prescription EPAP products for mild to moderate OSA in adults: Bongo Rx and ULTepap 2 [13]. FDA's database shows Bongo was cleared through 510(k) in August 2018 under the product code for intranasal expiratory resistance valves for OSA [12]. The same guide lists an over-the-counter EPAP mask cleared only for snoring [13].

EPAP needs clear nasal breathing, and results vary. A follow-up sleep test confirms whether it works for you.

Do positional therapy devices work?

They can, if your apnea is mainly positional. That means most events happen when you sleep on your back.

Positional devices include vibrating bands worn on the neck or chest that buzz when you roll onto your back. Mayo Clinic notes that "devices that vibrate when you try to sleep on your back may help" [3].

A 2023 meta-analysis in Thorax pooled 18 studies of vibrating positional devices [15]. AHI fell by about 9 events per hour, a 43% reduction from baseline. Time spent on the back fell about 70% [15]. Changes in daytime sleepiness and quality of life were minimal, based on limited data [15].

Ask your clinician whether your sleep study shows positional apnea before buying one.

What about tongue devices and daytime tongue stimulation?

Tongue retaining devices

A tongue retaining device (TRD) uses a soft suction bulb to hold the tongue forward. Evidence is thin: a 2023 meta-analysis could only cite a single study comparing TRDs with jaw-advancing devices [6]. Because a TRD doesn't anchor to the teeth, it is sometimes discussed for people who can't wear a MAD. Ask a dental sleep specialist.

eXciteOSA (daytime tongue stimulation)

eXciteOSA is worn while awake, not during sleep. FDA granted it De Novo authorization on February 5, 2021 [11]. Its label describes "a removable tongue muscle stimulation device that delivers neuromuscular stimulation to the tongue" to reduce "snoring and mild obstructive sleep apnea (AHI<15)" in patients 18 or older [11]. It is not indicated for moderate or severe OSA.

Are smart rings and watches sleep apnea devices?

Not treatment devices. Some can screen for possible sleep apnea, but none treat it.

Two smartwatch features have FDA authorization:

Samsung Galaxy Watch received De Novo authorization in February 2024 [19]. It is an over-the-counter feature for adults 22 and older that looks for signs of moderate to severe OSA over two nights [18]. FDA's review states users "should not use this feature to replace traditional methods of diagnosis and treatment by a qualified clinician" [18].
Apple Watch Sleep Apnea Notification Feature was cleared through 510(k) on September 13, 2024 [17]. It sits in an FDA category for over-the-counter devices "to assess risk of sleep apnea" [17]. AASM notes it helps identify signs of moderate to severe OSA in adults [20].

The AASM's position is clear. Consumer sleep technology without validation and FDA clearance "cannot be utilized for the diagnosis and/or treatment of sleep disorders" [16]. It can help start a conversation with your clinician [16].

If a wearable flags you, the next step is a real sleep apnea test. You can also take the free STOP-Bang interpreter to bring to your appointment.

Beware of "anti-snoring" gadgets sold as sleep apnea fixes

Chin straps, nose vents, sprays, "EMS" neck pads and boil-and-bite guards are often sold with sleep apnea language. Before you buy, check three things:

The cleared indication. Search the product in FDA's 510(k) or De Novo database. "An aid to reduce snoring" [5] does not mean "treats obstructive sleep apnea."
Whether it needs a prescription. OSA-labeled oral appliances and EPAP valves are generally prescribed [2][13]. A product sold freely with apnea claims deserves skepticism.
Whether it hides symptoms. Quieter snoring can mask ongoing breathing pauses. That is why AASM recommends follow-up testing even with proper appliances [2].

How much do sleep apnea devices cost?

Costs vary widely by device, region and insurance. What drives cost:

Custom vs non-custom. Dentist-made appliances include impressions, lab fabrication, fittings and adjustments.
Surgery. Implants involve a sleep endoscopy, surgeon and facility fees, and later device programming.
Ongoing supplies. PAP needs replacement masks, cushions and filters. EPAP valves are disposable.
Insurance rules. Plans may require a documented diagnosis, a prescription, or proof that CPAP failed. Ask your insurer before you buy.

How do you know if your sleep apnea device is working?

Feeling better matters, but people can feel improved while still under-treated [2].

Follow-up sleep test. AASM suggests follow-up testing for oral appliance users to "improve or confirm treatment efficacy" [2]. Retest after substantial weight change, new health problems, or returning symptoms [2].
Symptoms. Mayo Clinic advises contacting your care team if you still snore or feel sleepy despite treatment, or if your weight changes by 10% or more [3].
Device data. PAP machines record residual AHI, usage and leak every night. AASM even suggests telemonitoring during early PAP therapy [1].

The Apnealytics dashboard showing residual AHI, usage and leak — Figure 2. Residual AHI, usage and leak on one dashboard, for people on CPAP.

If you use a ResMed CPAP, Apnealytics reads your machine's SD card and charts residual AHI, usage hours and leak over time on one dashboard. Other machines are in testing or on a waitlist; see which machines work. It is a tracking tool, not a diagnosis. Learn what AHI means and what a good AHI on CPAP looks like.

What are the newest sleep apnea devices in 2026?

The biggest recent changes are approvals, not gadgets:

Inspire's 2023 label expansion to AHI up to 100 and adults 18 to 21 [7].
FDA approval of a second hypoglossal nerve stimulator, Genio, in 2025 [10].
FDA-authorized smartwatch screening features from Samsung (2024) and Apple (2024) [17][19].

Treat any "breakthrough" claim with caution until you can find its FDA indication and published results.

Track your therapy, whatever device you choose

The right sleep apnea device is the one that keeps your AHI down and that you use every night. If you're on a ResMed CPAP, Apnealytics turns your SD card into clear nightly trends you can share with your care team.

Frequently asked questions

What is the best device for sleep apnea?