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CPAP and BPAP therapy

Discover how CPAP works, practical tips for making it more comfortable, and when it might make sense to explore other options.
740-779-8700

How CPAP works

In obstructive sleep apnea, the muscles and soft tissue at the back of the throat relax during sleep and partially or fully block the airway. When this happens, breathing stops until the brain senses the drop in oxygen and wakes the body enough to resume breathing. This cycle can repeat dozens or even hundreds of times per night, interrupting sleep without you being fully aware of it.

CPAP, which stands for continuous positive airway pressure, addresses this by delivering a steady, pressurized stream of air through a mask worn over the nose or mouth. That air pressure keeps the airway open so it can’t be blocked. The machine does not breathe for you. It simply maintains enough pressure in the airway that the tissue cannot collapse.

The pressure level is set based on your sleep study results and can be adjusted by your care team as needed. Most modern CPAP machines are quiet, compact, and come with a humidifier to reduce dryness.

CPAP vs. BPAP: what is the difference?

CPAP delivers one continuous pressure level throughout the night. BPAP, or bilevel positive airway pressure, delivers two different pressure levels: a higher pressure when you inhale and a lower pressure when you exhale. BPAP is typically prescribed for patients who find exhaling against the constant pressure of a CPAP uncomfortable or for those with more complex breathing conditions. Your doctor will determine which is best for you based on your sleep study and health history.

CPAP Chart
BPAP Chart
AHI, or apnea-hypopnea index, is the number of breathing disruptions per hour of sleep. A score above 5 indicates sleep apnea. CPAP therapy aims to reduce your AHI to below 5. Your machine tracks this data, and your care team can review it at follow-up appointments.

Equipment overview

CPAP equipment has improved significantly over the years. Here is a basic overview of what the setup involves.

The machine

A small bedside device that pressurizes room air and delivers it through the tubing. Most modern machines are about the size of a small lunchbox and run quietly.

The mask

The interface between the machine and your airway. Masks come in several styles, including nasal pillows, nasal masks, and full face masks. Finding the right fit is one of the most important factors in CPAP success.

The humidifier

Most machines include a heated humidifier to add moisture to the pressurized air, which reduces common side effects like dry mouth, nasal congestion, and throat irritation.
 CPAP equipment requires a prescription. Your care team can help coordinate your equipment through a durable medical equipment provider. Most insurance plans, including Medicare, cover CPAP equipment for patients who meet the diagnostic criteria.

Tips for CPAP tolerance

CPAP is effective when it is used consistently but getting comfortable with it is an adjustment for many patients. These are some of the most common challenges and practical ways to address them.

Mask discomfort or leaking

Dry mouth or nasal congestion

Difficulty exhaling against the pressure

Feeling claustrophobic

Noise

Water in the tubing

CPAP compliance data is tracked automatically by your machine. Your care team reviews this data to see how many hours per night you are using it and whether your AHI is being controlled. If you are struggling, bring it up at your appointment. There are usually adjustments that can help before moving to an alternative therapy.

When to consider alternatives

CPAP works well for many patients, but it is not the right fit for everyone. If you have used CPAP consistently for several weeks and are still not tolerating it, or if it is not controlling your sleep apnea effectively, you can discuss other options with your doctor.

Hypoglossal Nerve Stimulation therapy (HGNS)

HGNA therapy is an FDA-approved implant that treats obstructive sleep apnea from inside the body. A small device placed near the collarbone senses breathing and delivers gentle pulses to keep the airway open during sleep — no mask required. This option is designed for patients with moderate to severe obstructive sleep apnea who have not had success with CPAP.

Bilateral Hypoglossal Nerve Stimulation therapy (BHGNS)

BHGNS therapy is a battery-free implant that stimulates both branches of the tongue nerve to keep the airway open. One of the newest FDA-approved treatments for obstructive sleep apnea, we are among the first in the region to offer this option. This is best for patients who do not qualify for or prefer an alternative to HGNS.

Dental appliances

Dental appliances are custom-fitted oral devices worn during sleep that repositions the jaw and tongue to keep the airway open. This is a less invasive alternative for patients with mild to moderate obstructive sleep apnea or those who cannot tolerate CPAP and are not candidates for an implant.

Transvenous Phrenic Nerve Stimulation system: CSA only

If your sleep study shows central sleep apnea rather than obstructive sleep apnea, CPAP may not fully address your problem. The TPNS system is the only FDA-approved implant designed specifically for central sleep apnea, treating the neurological cause rather than the physical airway.

Frequently asked questions

Questions about your CPAP therapy?

Whether you are just getting started with CPAP or have been using it for years and have concerns, our sleep medicine team is here to help. Call us to schedule an appointment.

Call Adena Sleep Medicine: 740-779-8700