Understanding sleep apnea

What happens during sleep apnea?

In obstructive sleep apnea (OSA), the upper airway repeatedly narrows or closes during sleep. Breathing effort continues, but air has difficulty getting through. In central sleep apnea, the problem involves the signals that control breathing. A sleep study helps distinguish these patterns because they may need different treatment approaches. [1]

A person may not remember the brief sleep disruptions. That is one reason someone can spend a full night in bed and still feel unrefreshed.

What might you or a partner notice?

• Loud snoring, breathing pauses, or gasping during sleep.
• Daytime sleepiness, fatigue, or trouble concentrating.
• Morning headaches or a dry mouth.
• Difficulty staying asleep or frequent nighttime bathroom trips.

These experiences can have other causes, too. Tell a medical provider what you notice rather than trying to diagnose yourself from a list. Women may describe fatigue, headaches, or insomnia more prominently than the familiar picture of loud snoring. [2]

If you are concerned about your partner, describe what you have observed and how often. Offer to help prepare questions or attend a visit if they would like support.

Is snoring the same as sleep apnea?

No. Some people snore without having OSA, and snoring alone cannot tell you the cause or severity of a breathing problem. Breathing pauses, gasping, or daytime sleepiness are useful details to share during an evaluation. [1]

Learn how snoring is evaluated and how the findings guide care.

It does not have just one look

Body weight is one risk factor, but airway anatomy, age, family history, hormones, and medical conditions also matter. A person does not need to fit a stereotype to raise concerns about their sleep. [3]

The useful question is what is happening in your sleep and daily life—not whether you look like someone who would have sleep apnea.

A useful first step

Write down the sleep concerns you want to discuss, how long they have been happening, and what a partner has noticed. Bring any previous study or treatment information if you have it. Your primary care or sleep clinician can help decide whether testing is appropriate. [1]

You can also contact RespAir before a sleep study. We can help connect you with a local or online sleep physician for a medical evaluation. You do not need to choose a treatment before asking for help.

If sleepiness makes driving unsafe, do not drive. Discuss this with your clinician promptly. [5]

Common questions