What Is Sleep Apnea?
Why You Wake Up Feeling Tired
What is sleep apnea? It is a common sleep disorder — a form of sleep-disordered breathing — where breathing repeatedly slows, becomes shallow, or stops during sleep. Sometimes spelled sleep apnoea, or obstructive sleep apnoea for the most common form, it can leave you waking up tired no matter how long you were in bed.
Research estimates that nearly 936 million adults aged 30 to 69 across the globe have obstructive sleep apnea, making early awareness important.
At ZZZ Dental Sleep Medicine, we help adults in New Jersey understand symptoms, testing pathways, and treatment options after diagnosis.
What Happens During Obstructive Sleep Apnea?
Sleep apnea, simply explained, means breathing is being interrupted while you sleep. The main types of sleep apnea include obstructive sleep apnea, central sleep apnea, and complex sleep apnea.
Obstructive sleep apnea is the most common kind and is noticed when the upper airway becomes blocked during sleep.
In obstructive sleep apnea, the muscles of the throat relax and the soft palate, tongue, or other soft tissue may narrow the upper airway. This causes repeated episodes of shallow breathing or obstructive apneas — brief pauses when breathing stops.
Sleep Apnea by the Numbers
million
globally may have moderate to severe obstructive sleep apnea.
million
U.S. adults may have obstructive sleep apnea.
%
of U.S. Cases
may be undiagnosed.
Recognizing the Signs and Risk Factors of Sleep Apnea
Most common symptoms often include loud snoring, morning headaches, excessive daytime sleepiness, poor sleep quality, mood changes, difficulty concentrating, and a sleeping partner noticing that breathing stops during the night. Other symptoms may include waking up gasping, a struggle to fall asleep or stay asleep, and low daytime energy.
When people ask “What is sleep apnea caused by?”, the answer is usually a mix of anatomy, health history, and lifestyle. Mild sleep apnea and severe sleep apnea can share similar warning signs, but people with certain conditions face a higher risk.
Common risk factors include:
- High blood pressure
- Excess weight or a narrowed airway
- Family history or aging
- Alcohol use or smoking
- Chronic obstructive pulmonary disease
- Congestive heart failure or existing heart disease
- Atrial fibrillation or an irregular heartbeat
- Diabetes mellitus or metabolic syndrome
- Neurological disorders
Diagnosing OSA: Partnership with a Healthcare Provider
Diagnosing OSA begins with symptoms, medical history, a physical exam, and a sleep study when appropriate. A healthcare provider may prescribe home sleep apnea testing or an in-lab sleep study to measure breathing, oxygen changes, and sleep disruption.
ZZZ Dental Sleep Medicine helps guide patients through screening and testing next steps, but diagnosis is made through the appropriate medical pathway by healthcare professionals and may involve a sleep specialist when needed. Testing also tracks blood oxygen levels overnight.
Results may include an apnea-hypopnea index, which estimates events per hour and helps classify severity — for example, 15 to 30 events per hour for moderate OSA and more than 30 per hour for severe OSA.
How Is Obstructive Sleep Apnea Treated?
How obstructive sleep apnea is treated depends on the severity of the condition, airway anatomy, symptoms, medical history, and what the patient can comfortably use long-term. The goal is to keep the airway open, improve breathing, support restful sleep, help prevent complications such as cardiovascular problems, and reduce health problems linked to untreated sleep apnea. For some adults, steps to lose weight can also support treatment.
After diagnosis, ZZZ Dental Sleep Medicine helps adults understand treatment options and coordinate a plan that fits their needs.
Treatment options may include:
- CPAP therapy
- Oral Device Therapy
- Lifestyle changes
- Weight loss support
- Positional therapy
- Surgical treatment in select cases
- Upper airway stimulation
- Physician-guided sleep medicine care
How Oral Appliance Therapy Helps Treat Sleep Apnea
Oral device therapy is one of the main ways ZZZ Dental Sleep Medicine helps adults manage obstructive sleep apnea after diagnosis. Instead of using continuous positive airway pressure, often called CPAP, this approach uses a custom oral appliance designed to support the jaw and help keep the airway open during sleep.
A mandibular advancement device is one type of oral appliance that may gently position the lower jaw forward to improve airway space. According to clinical guidance, including from groups such as the American Thoracic Society, oral appliance therapy may be considered for certain patients with mild obstructive sleep apnea, snoring, or CPAP intolerance after proper evaluation.
This makes it a practical option for many adults who want treatment that feels more comfortable, portable, and easier to use consistently.
Common Questions About Sleep Apnea
For adults searching for Sleep apnea guidance in New Jersey, ZZZ Dental Sleep Medicine offers patient-first support in Ocean County for symptoms, screening, testing guidance, and treatment options after diagnosis.
Can sleep apnea affect life expectancy?
Yes. Untreated sleep apnea may increase the chance of serious health problems, especially when severe, because repeated episodes of breathing pauses can strain the heart, blood vessels, and oxygen levels over time. Treating sleep apnea may help reduce these risks and support better overall health.
Can mild sleep apnea still cause health problems?
Yes. Mild sleep apnea can still affect rest, energy, mood, focus, and daily quality of life. Even when symptoms seem manageable, proper evaluation can help determine whether treatment or lifestyle changes may be helpful.
Is snoring always sleep apnea?
No. Snoring can happen without sleep apnea, but loud or frequent snoring with daytime fatigue, morning headaches, or observed breathing pauses should be evaluated. These signs may signal obstructive sleep apnea or another sleep-related breathing concern.
Can sleep apnea be treated without CPAP?
Sometimes. Oral appliances may be appropriate for select patients after diagnosis, especially those with mild to moderate obstructive sleep apnea or CPAP intolerance. ZZZ Dental Sleep Medicine can help patients understand whether oral device therapy may fit their needs.
How do I know if I need a sleep study?
If you snore loudly, wake up tired, experience morning headaches, or have a sleeping partner notice breathing pauses, a sleep study may help determine whether sleep apnea is present. ZZZ Dental Sleep Medicine can guide you through the next steps for testing and review.
Still Wondering “What Is Sleep Apnea?”
If you are still in search of answers to the question “what is sleep apnea?” and whether your symptoms may be connected, ZZZ Dental Sleep Medicine can help you take the next step with clarity.