Understanding Sleep Apnea: Signs, Symptoms, and Everyday Management

What You Need to Know

Sleep apnea is a common sleep disorder that causes your breathing to repeatedly stop or become very shallow while you sleep. These interruptions may happen many times throughout the night, often without you realizing it.

When breathing is interrupted, your body may not get enough oxygen, and your sleep may be disrupted. Even if you spend enough hours in bed, you may wake up feeling tired or unrefreshed.

Sleep apnea can affect more than your sleep. If left untreated, it may contribute to high blood pressure, heart problems, difficulty managing blood sugar, and problems with memory or concentration.

The good news is that sleep apnea can be diagnosed and treated. Whether you think you might have sleep apnea or have already been diagnosed, understanding the condition can help you recognize symptoms, follow your treatment plan, and protect your overall health.

What Are the Different Types of Sleep Apnea?

There are two main types:

Obstructive Sleep Apnea (OSA)

This is the most common type. It occurs when the muscles and tissues in your throat relax during sleep, causing your airway to become partially or completely blocked.

Central Sleep Apnea (CSA)

This less common type occurs when your brain does not consistently send the signals needed to control breathing during sleep. It may be associated with certain medical conditions, including heart failure, or medications such as opioids.

Some people experience a combination of breathing problems.

Your healthcare provider can help determine which type you have and recommend appropriate treatment.

Signs and Symptoms of Sleep Apnea

Sleep apnea can be difficult to recognize because many symptoms occur while you are asleep.

Symptoms During Sleep

You or someone who shares your home may notice:

Loud or frequent snoring
Pauses in breathing during sleep
Gasping, choking, or snorting sounds
Restless or interrupted sleep
Frequent nighttime awakenings
Waking up feeling short of breath
Frequent trips to the bathroom during the night

Important: Not everyone who snores has sleep apnea, and not everyone with sleep apnea snores. You can have sleep apnea even if you sleep alone or no one has noticed breathing changes.

Symptoms During the Day

Common daytime symptoms include:

Feeling tired even after a full night's sleep
Excessive daytime sleepiness
Falling asleep while reading, watching television, or sitting quietly
Morning headaches
Dry mouth when waking up
Difficulty concentrating
Forgetfulness or memory problems
Irritability or mood changes
Feeling less motivated or energetic

Some people, particularly older adults, may notice fatigue, poor concentration, or disrupted sleep rather than obvious daytime sleepiness.

Do not assume that persistent fatigue, poor sleep, or worsening concentration is simply a normal part of aging.

Who Is More Likely to Develop Sleep Apnea?

Sleep apnea can affect adults of any age and body size, but certain factors increase the likelihood of developing the condition.

These include:

Older age
Excess body weight
A family history of sleep apnea
Certain facial, jaw, or airway structures
Nasal obstruction or congestion
Smoking
Alcohol use, particularly near bedtime
Use of certain sedating medications
High blood pressure
Certain medical conditions, including heart failure

You do not have to be overweight to have sleep apnea. People of different body sizes can develop the condition.

If you have several risk factors or symptoms, ask your healthcare provider whether an evaluation would be appropriate.

How Can Sleep Apnea Affect Other Areas of Your Health?

Sleep apnea does more than interrupt your sleep. Repeated drops in oxygen levels, disrupted sleep, and changes in the body's stress response may affect several important body systems.

1. High Blood Pressure

Sleep apnea can contribute to elevated blood pressure, particularly when it is difficult to control.

Repeated breathing interruptions can activate the body's stress response, which may increase blood pressure during the night and contribute to ongoing blood pressure problems.

If you have high blood pressure, especially if it remains elevated despite treatment, your healthcare provider may consider whether sleep apnea is contributing.

2. Heart Disease and Heart Failure

Sleep apnea is associated with several cardiovascular conditions, including:

Coronary artery disease
Heart attack
Heart failure
Atrial fibrillation and other abnormal heart rhythms

Breathing interruptions can place additional stress on the heart and blood vessels.

Sleep apnea may also occur alongside heart failure, making coordinated care especially important.

If you have heart disease or heart failure, tell your healthcare provider about snoring, nighttime breathing problems, or excessive daytime fatigue.

3. Stroke Risk

Untreated sleep apnea is associated with an increased risk of stroke.

Repeated reductions in oxygen levels and effects on blood pressure and blood vessels may contribute to this risk.

Managing sleep apnea is one part of protecting your overall cardiovascular health, along with controlling blood pressure, diabetes, cholesterol, and other risk factors.

4. Diabetes and Blood Sugar Management

Sleep apnea is associated with insulin resistance, which means your body may have more difficulty using insulin effectively.

Poor sleep can also affect blood sugar regulation.

For patients with diabetes, addressing sleep apnea may support overall health and sleep quality. However, sleep apnea treatment does not replace diabetes medications, nutrition recommendations, or blood sugar monitoring.

5. Memory, Concentration, and Brain Health

Interrupted sleep and reduced oxygen levels may affect your ability to think clearly.

You may notice:

Difficulty concentrating
Forgetfulness
Slower thinking
Trouble making decisions
Reduced attention during everyday activities

Sleep apnea has also been associated with cognitive decline and dementia, although this does not mean everyone with sleep apnea will develop these conditions.

Treating sleep apnea may improve daytime alertness and some thinking difficulties, but it has not been proven to prevent dementia.

6. Mood and Emotional Well-Being

Poor sleep can affect how you feel emotionally.

Sleep apnea may contribute to:

Irritability
Mood changes
Anxiety
Symptoms of depression
Reduced motivation

If you notice persistent changes in your mood, discuss them with your healthcare provider.

7. Kidney and Lung Health

Sleep apnea is associated with chronic kidney disease and may complicate the management of certain lung conditions.

If you have chronic obstructive pulmonary disease (COPD), asthma, kidney disease, or another chronic condition, it is important to discuss sleep-related breathing problems with your healthcare team.

Your treatment may need to be individualized based on your other medical conditions.

8. Daytime Safety and Fall Risk

Excessive daytime sleepiness and poor concentration can increase the risk of accidents.

For older adults, fatigue, dizziness, and reduced alertness may make everyday activities more difficult and contribute to safety concerns.

Never drive when you feel sleepy or are having difficulty staying alert. Discuss excessive daytime sleepiness with your healthcare provider.

How Is Sleep Apnea Diagnosed?

If your healthcare provider suspects sleep apnea, they may recommend a sleep study.

A sleep study measures breathing patterns and other body functions while you sleep.

Home Sleep Apnea Test

Some patients may be able to complete a sleep apnea test at home using portable monitoring equipment.

This type of test typically measures breathing and oxygen levels during sleep.

Home testing is not appropriate for everyone. Patients with certain heart or lung conditions, suspected central sleep apnea, or other complex medical concerns may need more detailed testing.

In-Laboratory Sleep Study

An overnight sleep study, also called polysomnography, is performed at a sleep center.

It may monitor:

Breathing patterns
Oxygen levels
Heart rate
Brain activity
Body movements
Sleep stages

Your healthcare provider will determine which type of testing is most appropriate.

Understanding Your Results

Your sleep study may include a measurement called the Apnea-Hypopnea Index (AHI).

This number estimates how many times per hour your breathing stops or becomes significantly reduced during sleep.

For adults, obstructive sleep apnea is commonly classified as:

AHI	General Classification
5–14 events per hour	Mild
15–29 events per hour	Moderate
30 or more events per hour	Severe

Your healthcare provider will interpret these results along with your symptoms, oxygen levels, and medical history. AHI alone does not describe every aspect of your condition.

How Is Sleep Apnea Treated?

Treatment depends on the type and severity of sleep apnea, your symptoms, and your other health conditions.

1. Positive Airway Pressure (PAP) Therapy

Positive airway pressure therapy is a common and effective treatment for obstructive sleep apnea.

A PAP machine delivers air through a mask to help keep your airway open while you sleep.

Types include:

CPAP (Continuous Positive Airway Pressure): Delivers a steady level of air pressure.
APAP (Auto-Adjusting Positive Airway Pressure): Automatically adjusts pressure within a prescribed range.
BPAP or BiPAP (Bilevel Positive Airway Pressure): Delivers different pressure levels when breathing in and out.

Your healthcare provider will determine which device is appropriate for your condition.

2. Oral Appliances

Some patients with obstructive sleep apnea may benefit from a custom-fitted oral appliance that helps position the lower jaw to keep the airway more open during sleep.

These devices are generally provided by a qualified dentist working with your sleep specialist.

They may be appropriate for certain patients with mild to moderate obstructive sleep apnea or those who cannot tolerate CPAP.

3. Lifestyle Changes

Lifestyle changes may help improve obstructive sleep apnea and support overall health.

These may include:

Maintaining a healthy weight
Getting regular physical activity
Avoiding smoking
Limiting or avoiding alcohol
Maintaining consistent sleep habits
Sleeping on your side when recommended

Lifestyle changes may not be enough to treat sleep apnea on their own.

4. Other Treatment Options

For selected patients, other options may include specialized devices or surgical procedures.

Central sleep apnea may require a different treatment approach, including management of underlying medical conditions.

Your sleep specialist can discuss the options most appropriate for you.

Do not discontinue prescribed sleep apnea treatment simply because your symptoms improve. Follow your healthcare provider's recommendations regarding ongoing treatment and reassessment.

If You Already Have Sleep Apnea: Tips for Managing Your Condition

If you have been diagnosed with sleep apnea, following your treatment plan consistently is important.

Use Your CPAP or PAP Machine as Prescribed

Use your machine every time you sleep, including naps, unless your healthcare provider instructs otherwise.
Follow the prescribed pressure settings.
Bring your machine when traveling.
Keep supplies and replacement parts available.
Attend follow-up appointments to review how well treatment is working.

Some patients notice improvements in snoring or daytime sleepiness relatively quickly. Others may need more time or adjustments.

What if Your CPAP Mask Is Uncomfortable?

Common problems include:

Air leaking around the mask
Dry mouth or nose
Nasal congestion
Skin irritation
Feeling uncomfortable or confined
Difficulty falling asleep while wearing the mask

Do not give up on CPAP without discussing the problem with your sleep specialist or equipment provider.

Possible solutions include:

Trying a different mask style or size
Adjusting mask straps
Using a humidifier as directed
Practicing wearing the mask for short periods while awake
Asking your healthcare team to review machine settings

Do not independently change prescribed pressure settings.

If PAP use causes new or significant abdominal pain or bloating, stop using the device and contact your healthcare provider promptly for instructions.

Keep Your Equipment Clean

Proper cleaning helps keep your equipment working safely.

Follow the manufacturer's cleaning instructions for your specific device.
Clean and dry the mask, tubing, and water chamber as directed.
Use the recommended type of water in your humidifier.
Replace masks, filters, tubing, and other supplies according to manufacturer and equipment-provider guidance.
Avoid unapproved cleaning products or methods that could damage your equipment.

Keep Your Follow-Up Appointments

Your sleep specialist may review information from your machine, including:

How often and how long you use it
Whether breathing interruptions are adequately controlled
Mask leaks
Whether adjustments are needed

You may need reassessment if you experience major weight changes, persistent symptoms, or changes in your health.

Everyday Habits That May Help You Sleep Better

Whether you have sleep apnea or are being evaluated for it, healthy sleep habits can support your overall well-being.

Keep a Consistent Sleep Schedule

Try to go to bed and wake up at approximately the same time each day.

Create a Comfortable Sleep Environment

Keep your bedroom quiet, dark, and at a comfortable temperature.

Avoid Alcohol Near Bedtime

Alcohol can relax the muscles of the throat and may worsen obstructive sleep apnea.

Review Sleep Medications With Your Healthcare Provider

Certain sleep medications, sedatives, and opioid pain medications can affect breathing or increase sleepiness.

Do not start, stop, or change prescribed medications without medical guidance.

Stay Physically Active

Regular movement can support sleep quality and overall health.

Consult your healthcare provider before beginning or significantly increasing exercise, particularly if you have heart disease, lung disease, balance problems, or other chronic conditions.

Discuss Your Sleeping Position

Sleeping on your side may help some people with obstructive sleep apnea.

Ask your healthcare provider whether positional changes are appropriate for you.

Maintain a Healthy Weight

For some people, weight loss can improve obstructive sleep apnea symptoms.

However, sleep apnea can occur at any body weight, and weight loss does not always eliminate the need for treatment.

Discuss appropriate weight-management goals with your healthcare provider, especially if you have other chronic conditions or concerns about unintentional weight loss.

Questions to Ask Your Healthcare Provider

If you think you may have sleep apnea:

Could my symptoms be caused by sleep apnea?
Would a sleep study be appropriate for me?
Should I have a home sleep test or an overnight study?
Could sleep apnea be affecting my blood pressure, heart health, or diabetes?
Are any of my medications affecting my breathing during sleep?

If you have already been diagnosed:

How severe is my sleep apnea?
Is my current treatment controlling my breathing interruptions?
How often should I use my CPAP or other prescribed device?
What should I do if my mask is uncomfortable or my machine is difficult to use?
Do I need another sleep study?
Could changes in my other medical conditions affect my treatment?

Key Takeaways

Sleep apnea causes repeated interruptions in breathing during sleep.
Symptoms may include loud snoring, gasping, daytime fatigue, morning headaches, and difficulty concentrating.
Sleep apnea can affect more than sleep, including blood pressure, heart health, blood sugar regulation, memory, and overall well-being.
A sleep study can help diagnose sleep apnea and determine its severity.
CPAP and other treatments can help improve breathing and sleep quality.
If you already use CPAP, consistent use and regular follow-up are important.
Report persistent symptoms or difficulty tolerating treatment rather than stopping treatment on your own.
Talk with your healthcare provider if you think you may have sleep apnea, even if you do not snore.

Better Sleep Can Support Better Health

Sleep is an important part of your overall health, especially when managing chronic medical conditions.

If you think you may have sleep apnea, recognizing the signs and discussing them with your healthcare provider is an important first step.

If you have already been diagnosed, following your treatment plan and addressing problems early can help you get the most benefit from treatment.

You do not have to accept ongoing exhaustion or poor-quality sleep as a normal part of getting older. Help is available, and taking steps to improve your sleep can support your health and quality of life.

When to Call Your Doctor

Contact your primary care provider or sleep specialist if you experience any of the following:

If You Have Not Been Diagnosed With Sleep Apnea

Loud, frequent snoring, especially with pauses in breathing
Gasping or choking during sleep
Persistent daytime sleepiness or fatigue
Morning headaches or waking up feeling unrefreshed
Difficulty concentrating or new memory concerns
Frequent nighttime awakenings without a clear cause
A family member or caregiver noticing that you stop breathing during sleep

Ask whether a sleep apnea evaluation or sleep study is appropriate.

If You Have Already Been Diagnosed With Sleep Apnea

Contact your sleep specialist or prescribing provider if:

You continue to feel excessively sleepy despite using treatment.
Snoring, gasping, or breathing pauses return despite treatment.
You have difficulty using your CPAP or other prescribed device.
Your mask causes persistent irritation, discomfort, or air leaks.
You experience persistent dry mouth, nasal congestion, or other treatment-related problems.
You develop significant bloating or abdominal discomfort while using PAP therapy.
You have major changes in weight or medical conditions that may affect treatment.
You experience new or worsening sleep problems.
You are considering stopping your treatment.

Always ask your healthcare provider for specific advice on when to call to report symptoms, and when to seek urgent/emergency care.

When to Seek Urgent or Emergency Care

Call 911 immediately for:

Severe difficulty breathing or respiratory distress
Chest pain or pressure that may indicate a heart attack
Sudden facial drooping, one-sided weakness, difficulty speaking, or other stroke warning signs
Loss of consciousness or inability to awaken someone normally
Severe confusion or other sudden, life-threatening symptoms

New shortness of breath while awake, worsening leg swelling, or a sudden decline in breathing—especially in someone with heart failure or lung disease—requires prompt medical assessment and should not automatically be attributed to sleep apnea.

Do not drive if you are excessively sleepy or struggling to remain alert. Contact your healthcare provider promptly for guidance.

Medical Disclaimer

This resource is provided for educational and informational purposes only and is not intended to replace professional medical advice, diagnosis, or treatment. The information presented is general in nature and may not apply to every individual or health situation.

Individuals should consult their physician or other qualified healthcare professional for personalized medical advice, diagnosis, or treatment recommendations related to their specific health conditions and should not begin any new exercise program or change their diet or medications without consulting their healthcare professional.

Call 911 if you are experiencing a medical emergency.