What Is Sleep Apnea and How Do You Know If You Have It?
Sleep apnea can interrupt breathing again and again during sleep. Learn the common signs and why a sleep assessment may be recommended.
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Quick answer
Sleep apnea is when your breathing stops and starts repeatedly while you sleep. Common signs are loud snoring, pauses in breathing that someone else notices, gasping or choking at night, and feeling very tired during the day. A sleep study can confirm it.
What are the signs?
- Loud, regular snoring
- Pauses in breathing seen by a partner or family member
- Waking up gasping or choking
- Feeling unrefreshed after a full night in bed
- Sleepiness or poor concentration during the day
- Morning headaches
Why does a partner often notice first?
You are asleep when the breathing pauses happen, so you may not know about them. A bed partner is often the first to hear the pauses or gasping.
How is it diagnosed?
A specialist asks about your sleep, breathing and daytime symptoms, then may suggest a sleep study. The study records breathing, oxygen levels and other signals while you sleep.
Can it be treated?
Yes. Treatment depends on the type and severity. For many people it includes positive airway pressure therapy such as CPAP, with regular follow-up.
Is sleepiness while driving a warning sign?
Yes. If you feel sleepy while driving, stop somewhere safe and speak to a doctor soon.
Medical information. This article is educational and does not replace individual medical advice. In an emergency call 998.
Questions readers ask
Can I have sleep apnea without snoring?
Loud snoring is common with sleep apnea, but not everyone with sleep apnea snores loudly. Other signs such as daytime sleepiness still deserve a check.

