Central Sleep Apnea: A Comprehensive Guide
Medically reviewed by Andre Stone | MD, University of Pittsburgh School of Medicine on August 24th, 2026.
Published on April 1st, 2026. Updated on August 28th, 2026.
Key Takeaways
Central sleep apnea occurs when your brain fails to send proper signals to the muscles that control breathing during sleep
Unlike obstructive sleep apnea, central sleep apnea involves a problem with the brain's respiratory control center rather than blocked airways
This condition affects about 0.9% of adults over 40 and is more common in men and people with heart failure
Symptoms include frequent awakening, morning headaches, difficulty concentrating, and excessive daytime sleepiness
Treatment may involve CPAP therapy, medication, or addressing underlying conditions that contribute to the problem
Overview
Central sleep apnea is a sleep disorder where your brain temporarily stops sending signals to the muscles that control breathing. This causes repeated pauses in breathing during sleep that can last 10 seconds or longer. Unlike obstructive sleep apnea, where airways become blocked, central sleep apnea is caused by a communication problem between your brain and breathing muscles.
This condition affects approximately 0.9% of adults over 40 years old. Men are more likely to develop central sleep apnea than women, especially after age 65. The condition often occurs alongside other serious health problems like heart failure, stroke, or kidney disease.
Central sleep apnea can significantly impact your quality of life and overall health. The repeated breathing interruptions can disrupt sleep and contribute to daytime fatigue and concentration problems. Central sleep apnea is also common in people with cardiovascular disease, although the relationship depends on its cause and severity. Early recognition and treatment are important for managing symptoms and preventing complications.
Your brain controls your breathing through a special area called the respiratory control center. This center tells your lungs when to breathe in and out. When this system doesn't work properly, your body may forget to breathe during sleep.
Some people develop central sleep apnea only during sleep while their breathing is normal when awake. Central sleep apnea occurs during sleep. Breathing problems while awake may point to a different or additional condition and should be evaluated by a healthcare professional. Understanding your specific situation helps your doctor find the best treatment for you.
Symptoms & Signs
Central sleep apnea symptoms can be subtle and often develop gradually. Many people don't realize they have the condition until a sleep partner notices breathing interruptions or they seek help for persistent fatigue.
Primary Symptoms
Repeated pauses in breathing during sleep that last 10 seconds or longer
Frequent awakening throughout the night with shortness of breath
Excessive daytime sleepiness and fatigue despite spending adequate time in bed
Morning headaches and difficulty concentrating during the day
Mood changes including irritability, depression, or anxiety
When to Seek Care
Contact a healthcare provider if you experience persistent daytime sleepiness that interferes with daily activities. Seek medical attention if your sleep partner reports that you stop breathing during sleep or if you wake up gasping for air. Snoring is less common with central sleep apnea compared to obstructive sleep apnea, but any concerning sleep symptoms warrant evaluation.
Some people feel confused or foggy when they wake up in the morning. They may have trouble remembering things or focusing at work or school. These memory problems usually improve when central sleep apnea is treated properly.
You might notice that you feel tired no matter how long you sleep. This happens because the breathing pauses disrupt your sleep cycle and prevent deep, restful sleep. Over time, this constant tiredness can affect your mood and relationships.
When to Seek Immediate Care
Get emergency medical attention if you experience severe difficulty breathing, chest pain, or loss of consciousness. These symptoms may indicate a serious underlying condition requiring immediate treatment.
Causes & Risk Factors
Central sleep apnea develops when the brain's respiratory control center malfunctions. Risk Factors and Associated Conditions
Central sleep apnea is more common in adults over 65, especially men. Other relevant factors and associated conditions include certain medications, alcohol use, smoking, heart failure, stroke, kidney disease, neurological disorders, and a family history of sleep or breathing disorders.
Age
Most common in adults over 65, especially men
Genetics
Family history of sleep disorders or breathing problems
Lifestyle
Alcohol use, smoking, and certain medications
Other Conditions
Heart failure, stroke, kidney disease, and neurological disorders
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Diagnosis
Diagnosing central sleep apnea requires a comprehensive evaluation to distinguish it from other sleep disorders and identify underlying causes.
Medical History & Physical Examination
Your doctor will ask about your sleep habits, daytime symptoms, and medical history. They'll want to know about any medications you take, especially pain medications or sedatives. A physical exam may focus on your heart, lungs, and nervous system. Your doctor will also ask about symptoms that might suggest heart failure, stroke, or other conditions associated with central sleep apnea.
Sleep partners can provide valuable information about your breathing patterns during sleep. Your doctor may ask them to describe any pauses in breathing, gasping sounds, or restless sleep movements they've noticed.
Diagnostic Testing
Sleep study (polysomnography) that monitors breathing, brain activity, heart rhythm, and oxygen levels during sleep
An echocardiogram may be ordered to assess heart structure and function when heart failure or another cardiac condition is suspected.
Blood tests to check for kidney disease, thyroid problems, or other metabolic conditions
Neurological tests if brain injury or neurological disease is suspected
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Treatment Options
Treatment for central sleep apnea focuses on addressing underlying conditions and improving breathing during sleep. The goal is to reduce breathing interruptions and improve sleep quality.
Conservative Treatments
Continuous positive airway pressure (CPAP) therapy to maintain steady airflow during sleep
Adaptive servo-ventilation (ASV) may help selected patients, but it is not appropriate for everyone. A sleep specialist should review heart function and the cause of central sleep apnea before prescribing it.
Treating underlying conditions like heart failure or adjusting medications that may contribute to the problem
Sleep position changes and maintaining a regular sleep schedule
Advanced Treatments
Supplemental oxygen therapy during sleep for people with low blood oxygen levels
Medications like acetazolamide that can stimulate breathing in certain cases
Implantable devices that stimulate the phrenic nerve to maintain regular breathing patterns
Some medications can cause fatigue or sleepiness that complicates symptom tracking. Review all medications and side effects with your healthcare team.
Your doctor may need to adjust your CPAP machine settings over time as your condition changes. Regular follow-up visits help your doctor see how well the treatment is working. Some people need to try different devices before finding the one that works best for them.
It's important to use your treatment device every night, even when you feel better. Skipping nights can allow your symptoms to return and reduce the benefits of treatment. Many people find it helpful to use their device at the same time each night as part of their bedtime routine.
Living with the Condition
Managing central sleep apnea requires ongoing attention to sleep habits and overall health. With proper treatment, most people can significantly improve their symptoms and quality of life.
Daily Management Strategies
Maintain a consistent sleep schedule by going to bed and waking up at the same time each day. Create a comfortable sleep environment that's cool, dark, and quiet. Use your CPAP or other prescribed devices every night as directed. Keep track of your symptoms and energy levels to share with your healthcare team during follow-up visits.
Taking care of your overall health helps your treatment work better. Eat a healthy diet with plenty of fruits, vegetables, and whole grains. Stay hydrated by drinking plenty of water throughout the day, which helps keep your airways moist.
Exercise & Movement
Regular moderate exercise can improve heart health and sleep quality, but avoid vigorous activity close to bedtime. Swimming and walking are excellent low-impact options that can strengthen your respiratory muscles. Some people may experience sleepiness from medications like Zepbound, so timing exercise appropriately is important.
Aim for at least 30 minutes of moderate activity most days of the week. Exercise during the day helps you sleep better at night and reduces daytime fatigue. Talk to your doctor before starting a new exercise program to make sure it's safe for you.
Stretching and gentle yoga can help reduce stress and improve sleep quality. These activities also help strengthen the muscles that support breathing. Many people find that relaxing activities in the evening prepare their body for better sleep.
Prevention
Treat underlying health conditions like heart failure, high blood pressure, and diabetes promptly
Limit alcohol consumption, especially in the evening, as it can worsen central sleep apnea
Avoid sedating medications unless absolutely necessary and prescribed by your doctor
Maintain a healthy weight through proper diet and regular exercise, as excess weight can worsen sleep disorders
Keep regular appointments with your doctor to monitor your heart health and other conditions. Ask your doctor about your risk factors for central sleep apnea. Central sleep apnea cannot always be prevented. Managing relevant health conditions and reviewing alcohol and medication use with your doctor may reduce risk in some situations.
Create healthy sleep habits starting today, even if you don't have sleep apnea yet. Good sleep practices benefit everyone and can help prevent sleep disorders from developing. Avoid drinking alcohol or eating large meals before bedtime.
Frequently Asked Questions
Central sleep apnea occurs when your brain fails to signal your breathing muscles, while obstructive sleep apnea happens when your throat muscles relax and block your airway. Central sleep apnea is less common and often linked to other medical conditions.
Whether central sleep apnea resolves depends on its cause. It may improve or resolve when an underlying cause is corrected, while other cases require ongoing management. Addressing underlying conditions like heart failure may significantly improve or even resolve the sleep apnea in some cases.
Untreated central sleep apnea can cause disrupted sleep, daytime sleepiness, and related accident risk. It is also associated with serious conditions such as heart failure and stroke, but these conditions may be causes, consequences, or shared illnesses depending on the individual. It can also worsen existing heart or lung conditions.
Certain medications, particularly opioid pain relievers and sedatives, can suppress your breathing drive and contribute to central sleep apnea. Some people also report fatigue with medications like Tirzepatide, which may affect sleep patterns.
Many people notice improvements in sleep quality and daytime alertness within a few weeks of starting treatment. However, it may take several months to see the full benefits, especially if you're also treating underlying conditions like heart failure.
Still have questions?
Consult with a healthcare professional for personalized advice.