SLEEP APNEA RESOURCES

Signs & Symptoms of Sleep Apnea

Recognizing the Warning Signs of Sleep Apnea

Sleep apnea is one of the most underdiagnosed conditions in the United States. The American Sleep Apnea Association estimates that approximately 80% of moderate and severe cases remain undiagnosed. One reason for this is that the most obvious symptoms — loud snoring and pauses in breathing — happen while you're asleep. Many patients only become aware of the problem when a partner, family member, or roommate notices something wrong.

At Glendale Dental Wellness, Dr. Ivan Chan helps patients identify the signs of sleep apnea and connects them with the diagnostic resources and treatment they need. Understanding what to look for is the first step toward restful sleep and better health.

Types of Sleep Apnea

Not all sleep apnea is the same. There are three distinct types, each with different underlying causes and symptom profiles:

Obstructive Sleep Apnea (OSA)

Obstructive sleep apnea is by far the most common form, accounting for approximately 84% of all sleep apnea diagnoses. OSA occurs when the muscles in the back of the throat relax during sleep, causing the soft palate, uvula, tonsils, and tongue to collapse inward and physically block the airway. When the airway becomes partially or fully obstructed, oxygen levels drop, and the brain briefly awakens you to restore breathing — often so briefly that you have no memory of waking up.

This cycle can repeat 5 to 100 or more times per hour in severe cases. Each event fragments your sleep architecture, preventing you from reaching the deep, restorative stages of sleep your body needs.

Central Sleep Apnea (CSA)

Central sleep apnea is less common and occurs when the brain fails to send the correct signals to the muscles that control breathing. Unlike OSA, the airway is not physically blocked — the body simply doesn't make the effort to breathe. CSA is more frequently associated with conditions such as heart failure, stroke, and the use of opioid medications. Patients with CSA may or may not snore, making it harder to detect without a sleep study.

Complex (Mixed) Sleep Apnea

Complex sleep apnea syndrome, also called treatment-emergent central sleep apnea, is a combination of both obstructive and central sleep apnea. It is typically identified when a patient being treated for OSA with a CPAP machine continues to have central apnea events. This form requires specialized management and close collaboration between sleep physicians and dental sleep medicine providers.

Common Symptoms of Sleep Apnea

Sleep apnea symptoms fall into two categories: nighttime symptoms (often observed by a bed partner) and daytime symptoms (experienced by the patient). If you recognize several of these symptoms in yourself or your partner, it is worth seeking evaluation.

Nighttime Symptoms

Loud, chronic snoring — especially snoring that is heard through walls or closed doors, or that worsens when sleeping on your back
Witnessed breathing pauses — a partner may notice that you stop breathing for several seconds and then resume with a gasp or snort
Gasping or choking during sleep — sudden awakenings accompanied by a sensation of choking or shortness of breath
Restless sleep — frequent tossing, turning, and position changes throughout the night
Frequent nighttime urination (nocturia) — the hormonal disruption caused by sleep apnea can increase urine production during sleep
Night sweats — the body's stress response to repeated oxygen drops can cause excessive sweating
Dry mouth or sore throat upon waking — mouth breathing during sleep, often caused by nasal airway obstruction, leads to dryness and irritation

Daytime Symptoms

Excessive daytime sleepiness — feeling tired despite what seems like a full night's sleep, or falling asleep during passive activities like watching television or reading
Morning headaches — caused by fluctuating oxygen levels and disrupted sleep; these headaches are typically dull, widespread, and resolve within a few hours of waking
Difficulty concentrating or memory problems — fragmented sleep impairs cognitive function, attention, and short-term memory
Mood changes — irritability, anxiety, and depression are significantly more common in patients with untreated sleep apnea
Decreased libido — hormonal changes and chronic fatigue can reduce interest in intimacy
Difficulty staying awake while driving — drowsy driving is one of the most dangerous consequences of untreated sleep apnea and is responsible for thousands of accidents annually

Risk Factors for Sleep Apnea

Certain characteristics and habits increase your likelihood of developing sleep apnea. Understanding your risk factors helps you and your healthcare providers make informed decisions about screening and prevention.

Excess weight — fat deposits around the upper airway are the single greatest risk factor for OSA; approximately 70% of OSA patients are overweight or obese
Neck circumference — a thicker neck (greater than 17 inches in men or 16 inches in women) is associated with a narrower airway
Age — sleep apnea risk increases with age, with the highest prevalence in adults over 50
Gender — men are two to three times more likely to develop sleep apnea than premenopausal women; after menopause, the risk equalizes
Family history — having close relatives with sleep apnea increases your risk, likely due to inherited anatomical features of the jaw, airway, and facial structure
Nasal congestion — chronic nasal obstruction from allergies, a deviated septum, or sinus problems forces mouth breathing, which worsens airway collapse
Alcohol and sedatives — these substances relax the muscles of the throat more than normal sleep does, increasing the likelihood and severity of airway obstruction
Smoking — smokers are three times more likely to develop OSA due to inflammation and fluid retention in the upper airway
Anatomical factors — a naturally narrow airway, enlarged tonsils or adenoids, a recessed jaw (retrognathia), or a large tongue all increase OSA risk

Dr. Chan evaluates many of these anatomical factors during your dental examination. A careful assessment of your jaw position, tongue size, airway dimensions, and soft tissue anatomy provides valuable clues about sleep apnea risk — even before a sleep study is performed.

When to Seek Evaluation

You should consider a sleep apnea evaluation if you experience any combination of the following:

Your partner reports loud snoring or witnessed breathing pauses during your sleep
You wake up feeling unrefreshed despite sleeping 7-8 hours
You experience excessive daytime sleepiness that interferes with work, driving, or daily activities
You wake frequently during the night, especially with a gasping or choking sensation
You have morning headaches that resolve within a few hours of waking
You have been told you have high blood pressure, particularly if it is resistant to medication

Early diagnosis and testing is essential because untreated sleep apnea carries significant health risks that worsen over time. The good news is that effective treatment — including oral appliance therapy — can dramatically improve your sleep, energy, and long-term health.

How Dr. Chan Can Help

At Glendale Dental Wellness, Dr. Chan is trained in dental sleep medicine and works alongside your physician to provide a comprehensive approach to sleep apnea care. During your consultation, he will:

Review your symptoms, medical history, and sleep patterns
Perform an oral examination to assess your airway anatomy, jaw position, tongue size, and soft tissue structures
Screen for TMJ issues that may coexist with or complicate sleep apnea
Coordinate with your physician or sleep specialist for diagnostic testing
Discuss treatment options, including custom oral appliance therapy

If you recognize any of the warning signs described on this page — in yourself or in someone you care about — we encourage you to take the next step. Schedule a consultation and let us help you get the answers and relief you deserve.

Frequently Asked Questions About Sleep Apnea Symptoms

Can you have sleep apnea without snoring?

Yes. While snoring is the most recognized symptom of obstructive sleep apnea, not everyone with sleep apnea snores. Central sleep apnea, in particular, often occurs without significant snoring. Other symptoms like excessive daytime sleepiness, morning headaches, waking up gasping, and difficulty concentrating may be present without noticeable snoring. This is why a comprehensive evaluation is important if you experience any combination of sleep apnea symptoms.

How do I know if my snoring is a sign of sleep apnea?

Snoring that is loud enough to be heard through closed doors, accompanied by witnessed pauses in breathing, gasping or choking during sleep, or excessive daytime sleepiness is more likely to indicate sleep apnea. Simple snoring that is soft and consistent without breathing pauses is less concerning but should still be evaluated if it disrupts your sleep or your partner's sleep. A sleep study is the only definitive way to distinguish between primary snoring and sleep apnea.

Can children have sleep apnea?

Yes, sleep apnea affects children as well as adults. In children, the most common cause is enlarged tonsils and adenoids. Symptoms in children may differ from adults and can include mouth breathing, bedwetting, behavioral problems, poor school performance, and restless sleep. If you suspect your child may have sleep apnea, consult with their pediatrician and visit our office for an oral evaluation.

What makes sleep apnea worse?

Several factors can worsen sleep apnea symptoms. Sleeping on your back allows gravity to pull the tongue and soft tissues backward, further blocking the airway. Alcohol consumption relaxes throat muscles and worsens obstruction. Weight gain increases fatty tissue around the airway. Nasal congestion from allergies or illness forces mouth breathing, which collapses the airway more easily. Certain medications, particularly sedatives and muscle relaxants, can also worsen sleep apnea.

Can sleep apnea develop suddenly or does it come on gradually?

Sleep apnea typically develops gradually over time as risk factors accumulate — weight gain, aging, and changes in muscle tone all contribute slowly. However, some patients notice a seemingly sudden onset of symptoms, often triggered by significant weight gain, a change in sleeping position, or hormonal changes such as menopause. In reality, the underlying airway narrowing was likely present before symptoms became noticeable.

Should I see a dentist or a doctor for sleep apnea symptoms?

Both play important roles. Your primary care physician or a sleep medicine specialist will order a sleep study to diagnose sleep apnea and determine its severity. A dentist trained in sleep medicine, like Dr. Chan, evaluates your oral anatomy for airway factors, provides oral appliance therapy for treatment, and monitors your progress. We work collaboratively with your physician to provide comprehensive care.