People with obstructive sleep apnea can use continuous positive airway pressure, or CPAP, machines for a good night's rest. A CPAP system includes a unit that compresses air to a preset level, an interface that sends air into the respiratory system and a hose to connect the other two components. The CPAP interface can be a full-face mask, a nasal mask or nasal pillows, according to the American Sleep Apnea Foundation.
Identification
Nasal pillows are small, soft mushroom-shaped pieces that fit into either nostril. People who use CPAP therapy attach the nasal pillows to a rectangular adapter that connects to the hose. When the CPAP unit is turned on, it sends compressed air through the hose to the adapter, which funnels it through the nasal pillows and into the nostrils. The hose, adapter and nasal pillows are held in place by either side straps that wrap laterally around the head or ball-cap style straps that circle the crown of the head like a baseball cap does, according to the Mayo Clinic.
Function
When people with sleep apnea fall asleep, their muscles relax and allow the airways to constrict or even close completely. Nasal pillows direct air through the upper respiratory system and into the lungs to keep the airways open and provide oxygen. Instead of experiencing snoring and intermittent pauses in their breathing, people who use nasal pillows as part of a CPAP system can experience uninterrupted, restful sleep without apnea, according to MedlinePlus, a medical information resource established by the U.S. National Library of Medicine.
Considerations
Nasal pillows are most effective when they fit snugly within the nostrils, creating a seal that allows the CPAP unit to deliver the prescribed amount and pressure of air to the airways, according to the American Sleep Apnea Foundation. Work with a sleep care professional who can recommend the right style and size of nasal pillows and provide instructions to ensure a good fit.
Benefits
Because nasal pillows don't come into contact with the upper lip, cheeks or chin, they offer an alternative to full-face or nasal masks. Men with beards and mustaches often find that their facial hair interferes with a good mask fit, but nasal pillows eliminate that concern. Nasal pillows work well for individuals who find masks uncomfortable, claustrophobic or irritating to the skin, according to the Mayo Clinic.
Side Effects
People who use nasal pillows commonly complain of nasal congestion, dry or sore mouth and nosebleeds, according to MedlinePlus. Some CPAP models have a built-in humidifier to moisten the compressed air and reduce these symptoms. Nasal saltwater sprays or freestanding humidifiers can also reduce the unwanted side effects.


