Search IconSearch
November 15, 2023/Living Healthy/Sleep

Could You Have Sleep Apnea Without Knowing It?

Ignoring the warning signs could put you at risk for serious health issues

person snoring in bed with partner

How often do you think about the quality of your breathing while you sleep? Probably never. But it might be time to give it some thought — particularly if you wake up feeling less than rejuvenated.


Cleveland Clinic is a non-profit academic medical center. Advertising on our site helps support our mission. We do not endorse non-Cleveland Clinic products or services. Policy

Sleep apnea is a “grossly under-recognized” breathing condition that increases the risk of heart attack, stroke and other serious health consequences. It’s estimated that 85% to 90% of people with sleep apnea don’t know that they have it.

Meanwhile, research shows that the number of people with diagnosed sleep apnea continues to grow, affecting:

  • 10% of men aged 30 to 49 and 17% of men aged 50 to 70.
  • 3% of women aged 30 to 49 and 9% of women aged 50 to 70.

That’s a worrisome trend that can keep you up at night. To help you sleep easier, let’s learn more about the condition and talk about solutions with sleep medicine specialist Nancy Foldvary-Schaefer, DO, MS.

What happens during sleep apnea?

In the simplest of explanations, you stop breathing.

Obstructive sleep apnea (the most common type of sleep apnea) occurs when your upper airway narrows or becomes blocked at the back of your throat, which reduces or even stops airflow to your lungs.

Thankfully, your body’s on-duty survival reflex is trained to kick in when your oxygen dwindles. That save-the-day response results in you waking up just enough to resume breathing, explains Dr. Foldvary-Schaefer.

People with moderate to severe sleep apnea may have 15 or more of these episodes per hour. Briefly waking up is better than not breathing, of course … but it’s also not great for restful and restorative sleep.

Signs you might have sleep apnea

If your sleep apnea is severe, you might wake up at night gasping for air and feeling like you’re choking. (If you share a bed with someone, they may tell you that it’s pretty scary watching you sleep.)


Snoring is often a telltale sign of sleep apnea. “Not all snorers have sleep apnea, but snoring is usually the first noticeable symptom,” shares Dr. Foldvary-Schaefer.

But signs of sleep apnea aren’t just evident during sleep. Fatigue, declining performance at work or school and mood changes are all associated with sleep apnea. Morning headaches are common, too. You also may experience problems with sex.

Women and people assigned female at birth (AFAB) often have more subtle symptoms, typically involving fatigue and often attributed to depression. “It can take women up to a decade longer than men to receive a diagnosis of sleep apnea,” says Dr. Foldvary-Schaefer.

Who typically gets sleep apnea?

Anyone at any age can experience sleep apnea, but some groups or circumstances make the condition more likely. The list includes:

  • Age. Constricted airways during sleep become more common as throat muscles naturally weaken over time. Increases in sleep apnea cases since 1990 have been connected to aging Baby Boomers.
  • Excess weight. Extra fat around your neck can compress your airway as you sleep. The “obesity epidemic” has also contributed to the rise in sleep apnea diagnoses, says Dr. Foldvary-Schaefer.
  • Sex. Before age 50, sleep apnea is more common in men and people assigned male at birth (AMAB). The gap between men and women (people AMAB or AFAB) narrows later in life.
  • Ethnicity. Sleep apnea is more common among Asian, Black and Hispanic populations.
  • Large tonsils that obstruct your airway.
  • Genetics. A family history of sleep apnea is present in about 25% to 30% of cases.


Drinking alcohol and sleeping on your back also can aggravate the condition, notes Dr. Foldvary-Schaefer.

Risks of sleep apnea

Ignoring sleep apnea can come with consequences.

“Untreated apnea increases your risk of stroke, heart attack and high blood pressure,” states Dr. Foldvary-Schaefer. “If you have atrial fibrillation, sleep apnea doubles your odds of having a recurrence. If you have heart failure, it increases your risk of hospital admission.”

Sleep apnea can leave you fatigued and irritable, too, raising your risk of motor vehicle crashes, work-related injuries and accidents. Children with sleep apnea may have difficulty focusing on school.

Worldwide, people with obstructive apnea rate their quality of life worse in every measurable way.

Finding solutions for sleep apnea

Sleep apnea is very treatable once it’s identified. That’s where you come in.

“It’s easy to forget to bring up sleep apnea symptoms at your annual checkup, but it’s best to tell your doctor about them,” advises Dr. Foldvary-Schaefer. “Otherwise, sleep apnea can be missed for many, many years.”

To see if you have sleep apnea, your healthcare provider will likely take a sleep history and order a sleep study. In some cases, you may be referred to a sleep medicine specialist or sleep center.

The gold standard for sleep apnea treatment is positive airway pressure (PAP). This method uses specialized devices to increase air pressure in your airway, which keeps it open so you can breathe.

Odds are you’ve heard of a continuous positive airway pressure (CPAP) machine, one of many devices used for treatment.

“But there are multiple forms of PAP therapy and a wide range of masks,” clarifies Dr. Foldvary-Schaefer. “Patients with difficulty tolerating the constant flow of air pressure often prefer auto- or bi-level PAP therapy and need help with mask options.”

Other treatment routes include:

The bottom line

Most people spend one-third of their day sleeping. Don’t underestimate how vital that time is for your overall well-being.

“Sleep is as important to good health as diet and exercise,” says Dr. Foldvary-Schaefer. “We need sleep to restore every cell in our bodies. If we neglect it, some aspect of our health will suffer.”


Learn more about our editorial process.

Related Articles

Person sleeping as alarm clock goes off
July 8, 2024/Sleep
Sleep Inertia: What It Is and How To Get Rid of It

A morning routine called RISE-UP may cut down the time you spend groggy and disoriented after waking up

Happy couple sleeping in bed together, holding hands
June 3, 2024/Sleep
The Scandinavian Sleep Method: A Surprisingly Simple Fix for Couples Struggling With Blanket-Hogging

Sleeping with separate blankets can help you get the ZZZs you need — without fighting for covers all night

Person sitting on bed in pjs with head in hand, eyes closed
May 29, 2024/Sleep
Here’s What Happens When You Don’t Get Enough Sleep

Stress, weight gain and forgetfulness are just a few effects of losing sleep

Person in bed experiencing nightmares
May 22, 2024/Sleep
7 Reasons You’re Having Nightmares

Stress, alcohol, sleep apnea and (you guessed it!) scary movies are a few common causes of bad dreams

Child in pjs sleeping in bed moving legs
May 22, 2024/Children's Health
How To Help Children With Restless Legs Syndrome

Regular exercise, an iron-rich diet, adequate sleep and bedtime routines that include a warm bath or massage may help with your kid’s RLS

Person sitting in chair writing in tablet
May 21, 2024/Sleep
Should You Be Keeping a Dream Journal?

Recording your dreams may help you become more mindful, understand your thought patterns, process your emotions and even reduce your stress

Person sitting in bed in the evening, reading a book, with cup of tea on bedside table
May 15, 2024/Sleep
Restless? Try These Bedtime Teas for Better Sleep

Chamomile, lavender and valerian root teas may offer a faster route to dreamland

Person asleep in bed, talking in their sleep
May 3, 2024/Sleep
Why Do People Talk in Their Sleep?

Many factors can contribute to sleep talking, like stress or anxiety, lack of or low-quality sleep, or even more serious sleep-related conditions

Trending Topics

Female and friend jogging outside
How To Increase Your Metabolism for Weight Loss

Focus on your body’s metabolic set point by eating healthy foods, making exercise a part of your routine and reducing stress

stovetop with stainless steel cookware and glassware
5 Ways Forever Chemicals (PFAS) May Affect Your Health

PFAS chemicals may make life easier — but they aren’t always so easy on the human body

jar of rice water and brush, with rice scattered around table
Could Rice Water Be the Secret To Healthier Hair?

While there’s little risk in trying this hair care treatment, there isn’t much science to back up the claims