Most people write off snoring as an annoying but harmless habit. The reality is considerably more serious. Nearly 1.5 million Australians are living with a sleep disorder, and the vast majority do not know it. Around 80% of obstructive sleep apnoea (OSA) cases remain undiagnosed, making it one of the most under-recognised health conditions in the country.
The consequences reach far beyond a restless night. Untreated OSA affects your heart, your mental health, your workplace performance and your relationships. It costs the Australian economy tens of billions of dollars every year. And for the people living with it, the condition quietly erodes quality of life, often for years before anyone connects the dots.
Here is what sleep apnoea is actually costing us, and what you can do about it.
What Is Obstructive Sleep Apnoea?
Obstructive sleep apnoea occurs when the soft tissues in the throat relax during sleep, causing the airway to partially or fully collapse. When that happens, the brain triggers a survival response, forcing a brief arousal so you can gasp for air. This cycle can repeat hundreds of times a night, often without the person ever fully regaining consciousness.
The result is chronically fragmented sleep, even if you feel like you have been in bed for a full eight hours.
Common Signs of OSA
- Loud, persistent snoring, particularly with witnessed choking or gasping
- Waking with headaches or a dry mouth
- Ongoing daytime fatigue despite a full night in bed
- Difficulty concentrating or persistent brain fog
- Irritability and unexplained mood changes
These symptoms are easy to dismiss or attribute to stress and a busy schedule, which is precisely why OSA goes undetected for so long. A formal sleep study (polysomnography) is the gold-standard method for diagnosing OSA and measuring its severity through the apnoea-hypopnoea index (AHI).
The Health Consequences of Untreated Sleep Apnoea
Left untreated, OSA is far more than a sleep problem. It is an independent risk factor for a range of serious, chronic health conditions.
Cardiovascular Risk
The link between OSA and heart health is well established. Research published in the Journal of the American Heart Association found that OSA can increase the risk of atrial fibrillation up to fourfold. It also contributes to hypertension, placing compounding strain on the cardiovascular system night after night.
Mental Health and Cognitive Function
The brain needs restorative sleep to regulate emotion and consolidate memory. Chronic fragmentation interferes with both. A 2024 study in the Australian Journal of General Practice found that 30 to 40% of patients presenting with insomnia also meet the diagnostic criteria for OSA. Over time, this can manifest as clinical depression, heightened anxiety, and significant impairment to memory and concentration.
Chronic Disease and Metabolic Health
OSA and metabolic health are closely connected. Untreated sleep apnoea is associated with worsening insulin resistance, increasing both the risk and severity of type 2 diabetes. It also complicates the management of other chronic conditions, creating a compounding burden on the individual and the broader healthcare system.
What Sleep Apnoea Is Costing Australia
The financial impact of undiagnosed and untreated sleep disorders is significant and largely preventable. According to research commissioned by the Sleep Health Foundation, sleep disorders cost the Australian economy over $26 billion annually. That includes $11 billion in lost workplace productivity and $14.4 billion in direct costs covering healthcare and accident-related expenses.
Beyond the headline figures, untreated OSA drives absenteeism and presenteeism, where employees are physically present but operating well below capacity. The downstream costs on healthcare spending, public safety and mental health services multiply when the root cause remains unaddressed.
Road Safety: A Public Issue, Not Just a Personal One
Australian government data shows fatigue contributes to around 20% of fatal road accidents in this country. Drivers with untreated OSA are 2.5 times more likely to be involved in a serious motor vehicle accident than the general population. That makes undiagnosed sleep apnoea a public safety issue, not just a personal health risk.
The Impact on Relationships and Family Life
Sleep apnoea is rarely experienced in isolation. Partners are often the first to notice the snoring, gasping or restless nights, and they lose sleep because of it too. It is why the term “sleep divorce” has entered everyday conversation, with nearly 31% of couples now sleeping in separate rooms as a way of coping.
The effects run deeper than separate bedrooms. Poor sleep reduces emotional regulation and empathy, creating a slow cycle of tension and conflict that can be difficult to trace back to its source. Relationships deteriorate gradually, and unnecessarily, when the underlying condition goes unaddressed.
Why So Many Cases Go Undiagnosed
There are two main reasons people do not seek help. First, they do not recognise their symptoms as a medical condition. Snoring gets normalised and fatigue gets blamed on a busy life. Second, there is a genuine fear of what treatment will involve, particularly around CPAP therapy and wearing a mask every night.
Both are understandable. But neither should stand between you and better health, especially when a sleep apnoea assessment is straightforward and modern treatment options are more comfortable and effective than ever.
Sleep Apnoea Treatment in Perth: What Are Your Options?
CPAP therapy is effective for moderate to severe OSA, but it is not the only path forward and it is not right for everyone. Compliance rates with CPAP are notoriously low, with many patients finding the mask uncomfortable or impractical to wear consistently.
At Absolute Sleep, we specialise in mandibular splints for sleep apnoea and snoring. These are custom-fitted dental devices that gently reposition the lower jaw to maintain an open airway during sleep. They are discreet, non-surgical, and significantly easier to tolerate night after night.
Why Patients Choose Mandibular Splints
- Non-invasive, with no mask, no machine and no tubing
- Custom-fitted by dental sleep medicine specialists for precision and comfort
- Higher long-term compliance rates compared to CPAP
- Clinically validated for mild to moderate OSA and primary snoring
For many patients, a mandibular splint is not a compromise. It is the treatment they actually commit to.
Do Not Wait to Get Answers
Sleep apnoea is a serious but highly treatable condition. The longer it goes unmanaged, the greater the toll on your health, your relationships and your daily functioning.
If any of the symptoms in this article sound familiar, start by understanding your risk. Take our sleep apnoea risk assessment for an initial picture of where you stand, then book a consultation with the Absolute Sleep team in Perth. We will work with you to find a treatment approach that fits your life.
Better sleep is better health, better relationships and a sharper mind at work. It is worth taking seriously.
Frequently Asked Questions
How do I know if I might have obstructive sleep apnoea?
The most common signs are loud, persistent snoring, witnessed gasping or choking during sleep, waking unrefreshed, morning headaches and significant daytime fatigue. Because the key symptoms occur during sleep, many people are completely unaware they have the condition. A formal sleep study is required to confirm a diagnosis and assess its severity.
Why is untreated sleep apnoea a serious health risk?
Untreated OSA significantly increases the risk of cardiovascular conditions including atrial fibrillation and high blood pressure. It also impacts mental health, memory and concentration, and is closely associated with worsening type 2 diabetes and other chronic diseases. The cumulative health burden over time is substantial.
How does sleep apnoea affect daily life and society?
The effects extend well beyond the bedroom. OSA contributes to lost workplace productivity, increased accident risk due to fatigue, and strain on personal relationships. At a national level, it costs the Australian economy billions of dollars each year in healthcare, lost output and road accident costs.
Are there alternatives to CPAP for treating sleep apnoea?
Yes. Mandibular splints are a clinically validated alternative for patients with mild to moderate OSA, as well as those who have tried CPAP without success. These custom-fitted dental appliances reposition the jaw during sleep to maintain an open airway, without a mask or machine. They are better tolerated by many patients and tend to result in stronger long-term treatment adherence.
