Published 20 August 2026 · Comooz clinical team, Singapore
Quick answer
Sleep apnea is a sleep-related breathing disorder where breathing repeatedly reduces or stops during sleep, most often from upper-airway collapse. In Singapore, common warning signs are loud snoring, choking, witnessed pauses, daytime sleepiness and morning headaches. Diagnosis usually needs a sleep study such as a Type 3 or Type 2 home sleep test or polysomnography, and treatment depends on AHI severity, symptoms and doctor review.
Sleep Apnea in Singapore: Symptoms, Tests, Treatment
Key takeaways
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Sleep apnea severity in adults is commonly grouped by AHI 5, 15 and 30 events/hour for mild, moderate and severe disease.
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In Singapore, testing may include a Type 3 home sleep test, a more detailed Type 2 home sleep test, or polysomnography, depending on symptoms and clinical complexity.
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CPAP is commonly used for moderate to severe obstructive sleep apnea, and Comooz’s ResMed AirSense 10 AutoSet Bundle is $1,868 nett while the ResMed AirSense 11 AutoSet Bundle is $2,068 nett.
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Both AutoSet bundles include the main unit, power supply, built-in humidification, tubing, filter, carrying case and a fitted mask.
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A 5-night CPAP trial is not free; it requires a deposit, mask cost and a $98 return fee, while monthly rental has 3-month offset rules toward purchase.
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Comooz, a Singapore CPAP provider (UEN 201808754M), supports patients from 151 Chin Swee Rd, #02-03, Singapore 169876, strictly by appointment.
What is sleep apnea?
Sleep apnea is a sleep-related breathing disorder in which airflow repeatedly reduces or stops during sleep. The most common form is obstructive sleep apnea, where the upper airway partially or fully collapses despite continued effort to breathe.
Snoring happens when airway tissues vibrate, but sleep apnea goes further. It causes repeated breathing interruptions, oxygen desaturation and brief brain arousals that fragment sleep and reduce sleep quality.
These events are summarised in the apnea-hypopnea index, or AHI. AHI is the average number of apneas and hypopneas per hour of sleep or estimated sleep, depending on the test used.
If you are new to the topic, Comooz’s sleep health learning resources explain sleep apnea basics, testing and treatment options in plain language.
Why sleep apnea matters in Singapore
Sleep apnea matters because it affects alertness, cardiovascular strain and day-to-day functioning. In Singapore, long workdays, shift work, commuting and frequent travel can make untreated sleepiness more disruptive and risky.
Some people notice loud snoring, choking or gasping. Others mainly report unrefreshing sleep, poor concentration, morning headaches, irritability or fatigue that they first blame on stress.
Sleep apnea deserves closer assessment when it appears alongside hypertension, atrial fibrillation, obesity, type 2 diabetes or resistant high blood pressure. If snoring and sleepiness coexist with those conditions, doctor review is more useful than self-diagnosis.
Types of sleep apnea: obstructive, central and mixed
Sleep apnea is not one single disorder. Doctors classify it as obstructive, central or mixed based on the mechanism behind the breathing interruptions.
Obstructive sleep apnea
Obstructive sleep apnea occurs when the upper airway narrows or collapses during sleep. The chest and diaphragm continue making breathing effort, but airflow is reduced or blocked.
This is the most common type. It is often associated with snoring, body habitus, nasal blockage, jaw and airway anatomy, and sleep-position effects.
Central sleep apnea
Central sleep apnea happens when the brain’s breathing control temporarily reduces or stops the signal to breathe. In central apnea, airflow stops because respiratory effort drops, not because the airway is physically blocked.
Central sleep apnea needs medical review because its causes and treatment differ from obstructive sleep apnea. A sleep physician may assess whether CPAP, another PAP mode, or a different pathway is more appropriate.
Mixed sleep apnea
Mixed sleep apnea contains both obstructive and central features. This pattern is typically identified by a doctor or sleep specialist reviewing the sleep study together with the clinical picture.
Common symptoms and warning signs
The classic symptoms of sleep apnea are loud snoring, witnessed pauses in breathing, gasping, choking and excessive daytime sleepiness. However, symptoms can be less obvious than many people expect.
Other warning signs include morning headache, dry mouth, frequent waking, nocturia, poor focus, reduced work performance and waking unrefreshed despite spending enough time in bed. Some people also score highly on the Epworth Sleepiness Scale, which estimates dozing tendency in everyday situations.
These symptoms do not diagnose sleep apnea by themselves. A sleep study is usually needed to confirm whether the breathing disturbances are present and clinically significant.
Who this is for and who it is not for
This guide is for adults in Singapore who suspect sleep apnea because of snoring, witnessed apneas, choking, daytime sleepiness or a recent recommendation to get tested. It is also useful for people comparing home sleep testing, polysomnography, CPAP, mask options and next-step logistics.
This guide is not a diagnosis, and it is not a substitute for medical care if you have severe breathlessness, dangerous drowsy driving, arrhythmia symptoms, or major worsening of heart or lung symptoms. It is also not the right place to self-manage suspected central sleep apnea without physician input.
Who is at higher risk?
Sleep apnea risk rises when upper-airway collapse or unstable breathing becomes more likely. Risk factors do not confirm disease, but they help identify who should be assessed sooner.
People at higher risk include those with obesity, larger neck size, chronic snoring, older age, nasal obstruction or a family history of sleep apnea. Men are often screened more frequently, but women can also have clinically significant sleep apnea, especially after menopause.
People with hypertension, atrial fibrillation, type 2 diabetes, prior stroke or resistant blood pressure issues should be especially alert to symptoms. Marked daytime sleepiness should not be dismissed as “just poor sleep” without proper review.
How sleep apnea affects the body
Sleep apnea affects the body through repeated airway blockage, oxygen desaturation and sleep fragmentation. These repeated events can strain the cardiovascular system and reduce restorative sleep night after night.
Each apnea or hypopnea may trigger a drop in oxygen and a brief brain arousal. Over time, this pattern can worsen daytime sleepiness, mood, concentration and blood pressure control.
That is why sleep apnea is often discussed alongside heart health and metabolic risk. Untreated obstructive sleep apnea can add to the burden of hypertension and other cardiometabolic problems, which is why doctors take persistent symptoms seriously.
How sleep apnea is diagnosed
Sleep apnea is diagnosed through clinical assessment plus a sleep study. A doctor reviews symptoms, risk factors, medications and relevant medical history before deciding what type of test is appropriate.
The assessment often includes questions about snoring, witnessed apneas, choking, daytime sleepiness, driving risk and whether there are clues to central apnea or another sleep disorder. Some clinicians also use structured tools such as the Epworth Sleepiness Scale.
Diagnosis is not based on snoring alone. The final interpretation should come from a qualified doctor or sleep specialist who can relate the results to symptoms, oxygen data and clinical context.
AHI and severity: what mild, moderate and severe mean
AHI stands for apnea-hypopnea index. It measures the average number of apneas and hypopneas per hour.
In adults, AHI is commonly grouped as:
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Mild: 5 to 14.9 events per hour
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Moderate: 15 to 29.9 events per hour
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Severe: 30 or more events per hour
AHI is useful, but it is not the only thing that matters. Doctors also consider oxygen desaturation, symptoms, study quality, heart rhythm issues, blood pressure, and whether the event pattern suggests obstructive or central sleep apnea.
Sleep apnea test options in Singapore
In Singapore, sleep apnea testing usually involves either a home sleep test or in-lab polysomnography. The right test depends on how straightforward or complex the case is.
A home sleep test is a portable sleep-breathing study done outside the sleep lab. Polysomnography is a more detailed overnight study that records more channels, including sleep-stage data, and is often used when the diagnosis is uncertain or other sleep disorders are suspected.
Comooz offers home sleep test services in Singapore, including Type 3 testing on demand. Type 2 home sleep testing can also be arranged manually with a trained specialist.
| Test option | What it records | Convenience | Limitations | Typical use cases |
|---|---|---|---|---|
| Type 3 home sleep test | Usually airflow, breathing effort, pulse and oxygen saturation | High convenience; done at home | Less detailed than polysomnography and captures fewer sleep variables | Suspected obstructive sleep apnea in a straightforward case |
| Type 2 home sleep test | More channels than Type 3 and arranged with trained specialist support | Home-based but more involved | Manual arrangement and careful setup needed | Cases needing more data than a standard Type 3 home study |
| In-lab polysomnography | Comprehensive sleep signals, including breathing and sleep-stage data | Least convenient; done in a lab | More coordination, time and clinical scheduling | Complex symptoms, uncertain diagnosis, titration needs, or concern for non-obstructive sleep disorders |
Home sleep test vs polysomnography: which is right for you?
A home sleep test is often suitable when obstructive sleep apnea is strongly suspected and the case seems straightforward. It is generally the more convenient starting point for many adults.
Polysomnography is more suitable when symptoms are atypical, the diagnosis is uncertain, central sleep apnea is a concern, or a sleep physician wants fuller physiological data. Titration may also be considered when pressure setting decisions need closer supervision.
What titration means
Titration is the process of determining what pressure settings best control breathing events during sleep. In PAP therapy, this may involve finding a suitable fixed pressure or identifying an effective AutoSet range.
Titration becomes more important when symptoms persist, mask leak is high, pressure tolerance is poor, or bilevel therapy is being considered. In bilevel treatment, EPAP is the expiratory positive airway pressure that helps keep the airway open.
Treatment options for sleep apnea
Sleep apnea treatment depends on the type, severity, symptoms and medical context. Treatment decisions should be made with a doctor or sleep specialist rather than through self-diagnosis.
For obstructive sleep apnea, common approaches include CPAP, auto CPAP, custom oral appliances, weight management, positional strategies, alcohol reduction near bedtime, and treatment of nasal blockage. Selected patients may also be referred for surgery.
CPAP works by delivering positive airway pressure that splints the airway open during sleep. In bilevel therapy, inspiratory and expiratory pressures differ; EPAP is the expiratory positive airway pressure that helps keep the airway open, and titration helps determine effective settings.
Comooz provides CPAP machines in Singapore, including ResMed AutoSet options and bilevel support pathways. The ResMed AirSense 11 AutoSet Bundle costs $2,068 nett, while the ResMed AirSense 10 AutoSet Bundle costs $1,868 nett.
Both bundles include the main unit, power supply, built-in humidification, tubing, filter, carrying case and a fitted mask. AirSense 11 adds a full-colour touchscreen, Climate Control with integrated humidifier, over-the-air updates and Care Check-in, while AirSense 10 uses a monochrome display with dial and has built-in cellular connectivity for the myAir app.
| ResMed bundle | Price | Interface | Humidification | Connectivity and support features | Best fit for |
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| AirSense 10 AutoSet Bundle | $1,868 nett | Monochrome display with dial | Integrated HumidAir | Built-in cellular connectivity for myAir | Buyers who want a proven workhorse AutoSet at the lower bundle price |
| AirSense 11 AutoSet Bundle | $2,068 nett | Full-colour touchscreen | Climate Control with integrated humidifier | Over-the-air updates and Care Check-in | Buyers who want newer interface and support features |
Choosing a CPAP mask: nasal pillow vs nasal vs full face
Mask choice can matter as much as machine choice because comfort affects long-term use. The best mask is the one that seals well and feels tolerable enough to use consistently.
Nasal pillow masks are smaller and lighter, so they often suit people who want minimal facial contact. Nasal masks cover the nose and may suit people who want a more stable fit without moving to a full face option. Full face masks cover the nose and mouth and may suit those who mouth-breathe or have frequent nasal blockage.
| Mask style | Common fit profile | May suit | Trade-offs | Example discussed |
|---|---|---|---|---|
| Nasal pillows | Minimal-contact seal at the nostrils | People who prefer a lighter feel | May not suit some users with nostril sensitivity or persistent mouth leak | ResMed AirFit P10, AirFit P30i |
| Nasal mask / nasal cradle | Covers the nose or sits under it | People who want a balance of stability and less facial coverage | May be less ideal if nasal blockage is frequent | ResMed AirFit N20, AirFit N30, AirFit N30i |
| Full face mask | Covers nose and mouth | Mouth-breathers or those with regular nasal congestion | Larger contact area and potentially more leak points | ResMed AirFit F20, AirFit F30i, AirTouch F20 |
When discussing mask fit, common examples include nasal pillow options such as the ResMed AirFit P10 or P30i, nasal options such as the AirFit N20 or N30i, and full face options such as the ResMed AirFit F20, F30i or AirTouch F20. A proper fitting session matters because leak, pressure tolerance and humidification needs often determine whether a person continues treatment.
Which mask type is usually easiest to start with?
There is no single best starter mask for everyone. A nasal or nasal cradle mask is often a practical middle ground if you mainly breathe through your nose, while a full face mask may be more suitable if you regularly mouth-breathe or have frequent nasal congestion.
A nasal pillow mask may suit users who want the least facial contact. The trade-off is that some people are more sensitive to airflow at the nostrils, especially early on.
CPAP, oral appliance, weight loss and surgery: a comparison
Different sleep apnea treatments work in different ways. The best option depends on severity, anatomy, tolerance, symptoms and the doctor’s assessment.
| Option | How it works | Who it may suit | Expected benefits | Limitations | Follow-up needs | When doctor review is especially important |
|---|---|---|---|---|---|---|
| CPAP / auto CPAP | Delivers positive pressure to keep the airway open during sleep | Many people with moderate to severe obstructive sleep apnea; some with symptomatic mild disease | Can reduce apneas, snoring and sleep fragmentation when used consistently | Adjustment period, mask fit issues, dryness, pressure intolerance | Early troubleshooting, pressure review, mask fit checks, adherence review, titration if needed | Persistent sleepiness, poor tolerance, suspected central events, significant oxygen desaturation, heart or lung disease |
| Oral appliance | Repositions the jaw to help maintain upper-airway patency | Selected people with mild to moderate obstructive sleep apnea or CPAP intolerance | May reduce snoring and breathing events in suitable anatomy | Less suitable for some bite or jaw conditions; effect varies by person | Dentist follow-up plus medical review of symptom response and repeat testing when indicated | Ongoing symptoms, jaw pain, bite changes, moderate to severe disease, unclear effectiveness |
| Weight loss | Reduces airway risk factors and metabolic burden | People with overweight or obesity, usually alongside other measures | May improve symptoms and overall health; can support other treatments | Results take time; may not fully treat sleep apnea alone | Ongoing medical review and reassessment of symptoms or repeat sleep study | Severe symptoms, significant daytime sleepiness, cardiovascular disease, no improvement despite weight change |
| Surgery | Alters airway anatomy to reduce obstruction in selected cases | Carefully selected patients after specialist assessment | May help when anatomy is a strong driver or when other options fail | Invasive, not uniformly effective, recovery needed, may not remove need for other treatment | Surgical follow-up and objective reassessment of outcome | Complex anatomy, persistent symptoms after surgery, bleeding, worsening breathing, suspected mixed or central apnea |
Living with sleep apnea: adherence, follow-up and long-term care
Long-term success with sleep apnea treatment depends on comfort, adherence and follow-up. The best therapy is the one that can be used consistently with appropriate settings and a tolerable mask.
Humidification often improves comfort, especially for dryness or nasal symptoms. ResMed AutoSet machines discussed here include built-in humidification, and setup choices such as humidity level, mask type and leak control can make a large difference in early adaptation.
Comooz, a Singapore CPAP provider (UEN 201808754M), offers a 5-night CPAP trial, but it is not a free trial. It requires a deposit, mask cost and a $98 return fee. Monthly CPAP rental is also available, with 3-month offset rules toward purchase.
For support, setup and appointments, you can contact Comooz. The showroom is at 151 Chin Swee Rd, #02-03, Singapore 169876, strictly by appointment.
When to seek urgent medical advice
Urgent medical advice is important when sleep-related breathing symptoms are accompanied by immediate safety or medical concerns. Severe daytime sleepiness, dangerous drowsy driving, or major worsening of heart or breathing symptoms should not be ignored.
People should also seek prompt review if they have suspected sleep apnea plus uncontrolled hypertension, concerning oxygen issues, arrhythmia symptoms, or repeated choking episodes with marked distress. If symptoms are severe or sudden, seek urgent medical care rather than waiting for routine testing.
How Comooz supports sleep apnea care in Singapore
Comooz, a Singapore CPAP provider (UEN 201808754M), supports sleep apnea care with home testing access, CPAP setup and product guidance. It is not a substitute for physician diagnosis, but it helps patients navigate testing and therapy logistics.
Services include Type 3 home sleep tests, manually arranged Type 2 studies, CPAP trials, rental and purchase options, and mask fitting support. ResMed devices discussed include AutoSet machines with humidification and a range of mask styles such as nasal pillow, nasal and full face options.
You can learn more about Comooz if you want to compare pathways before booking.
Frequently asked questions
What are the main signs of sleep apnea?
Common signs include loud habitual snoring, witnessed pauses in breathing, gasping or choking during sleep, unrefreshing sleep, morning headaches, dry mouth and excessive daytime sleepiness. Some people also notice poor concentration, irritability or waking frequently at night. These symptoms are suggestive, but a doctor usually needs a sleep study to confirm whether sleep apnea is present.
How is sleep apnea diagnosed in Singapore?
Diagnosis usually starts with a doctor reviewing symptoms, medical history and risk factors, followed by a sleep study. Depending on the person, this may be a Type 3 home sleep test, a Type 2 home sleep test, or in-lab polysomnography. The results estimate breathing disturbances and oxygen drops, but interpretation should be made by a qualified doctor or sleep specialist.
What does AHI mean for sleep apnea?
AHI stands for apnea-hypopnea index, which measures the average number of breathing interruptions per hour of sleep. In adults, AHI is commonly grouped into mild, moderate and severe ranges using thresholds of 5, 15 and 30. AHI guides treatment discussions, but doctors also consider symptoms, oxygen levels, study quality and whether the pattern looks obstructive or central.
Can sleep apnea be treated without CPAP?
Yes, depending on the cause and severity. Some people may be advised on weight management, positional strategies, reducing alcohol near bedtime, treating nasal blockage, or using a custom oral appliance fitted by a trained dentist. Surgery may be considered in selected cases. CPAP remains a common first-line treatment for many people with moderate to severe obstructive sleep apnea.
Is sleep apnea dangerous if left untreated?
Untreated sleep apnea may be linked with daytime sleepiness, accident risk, reduced quality of life and a higher burden of cardiovascular and metabolic disease. It can also worsen blood pressure control and may affect heart rhythm, mood and concentration. Risk depends on severity and other health conditions, so suspected sleep apnea should be assessed by a doctor rather than ignored.
What is the difference between snoring and sleep apnea?
Snoring is a sound caused by vibration in the upper airway, while sleep apnea involves repeated reductions or pauses in breathing during sleep. Not everyone who snores has sleep apnea, but loud snoring with choking, witnessed pauses, sleepiness or high blood pressure is more concerning. A sleep study is usually needed to distinguish simple snoring from clinically significant sleep apnea.
WhatsApp Comooz or call +65 8892 2591 for help with sleep apnea testing, CPAP options and next steps in Singapore.
Talk to Comooz
Comooz is a Singapore CPAP provider (UEN 201808754M). For pricing, a home sleep test or a CPAP trial, contact us at support@comooz.sg or +65 8892 2591. Showroom visits at 151 Chin Swee Rd, #02-03, Singapore 169876 are strictly by appointment.
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Frequently asked questions
- What are the main signs of sleep apnea?
- Common signs include loud habitual snoring, witnessed pauses in breathing, gasping or choking during sleep, unrefreshing sleep, morning headaches, dry mouth and excessive daytime sleepiness. Some people also notice poor concentration, irritability or waking frequently at night. These symptoms are not specific enough to diagnose sleep apnea on their own, so medical assessment is important.
- How is sleep apnea diagnosed in Singapore?
- Diagnosis usually starts with a doctor reviewing symptoms, medical history and risk factors, followed by a sleep study. Depending on the person, this may be a home sleep test or an in-lab polysomnography study. The results help estimate breathing disturbances, oxygen drops and severity, but the final interpretation should be made by a qualified doctor or sleep specialist.
- What does AHI mean for sleep apnea?
- AHI stands for apnea-hypopnea index, which measures the average number of breathing interruptions per hour of sleep. In adults, AHI is commonly grouped as mild, moderate or severe. AHI helps guide treatment discussions, but doctors also consider symptoms, oxygen levels, heart and metabolic risk, and whether the study quality was adequate before recommending next steps.
- Can sleep apnea be treated without CPAP?
- Yes, depending on the cause and severity. Some people may be advised on weight management, positional measures, reducing alcohol near bedtime, treating nasal blockage, or using a custom oral appliance fitted by a trained dentist. Surgery may be considered in selected cases. CPAP remains a common first-line treatment for many patients, especially with moderate to severe obstructive sleep apnea.
- Is sleep apnea dangerous if left untreated?
- Untreated sleep apnea may be linked with daytime sleepiness, accident risk, poor quality of life and a higher burden of cardiovascular and metabolic disease. It can also worsen blood pressure control and may affect heart rhythm, mood and concentration. Risk varies by severity and other health conditions, so people with suspected sleep apnea should speak to a doctor rather than self-manage.
- What is the difference between snoring and sleep apnea?
- Snoring is a sound caused by vibration in the upper airway, while sleep apnea involves repeated breathing interruptions during sleep. Not everyone who snores has sleep apnea, but loud snoring combined with choking, witnessed pauses, sleepiness or high blood pressure raises concern. A sleep study is usually needed to tell the difference reliably.
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