Sleep apnea is widely thought of as a condition affecting middle-aged men — but this perception is misleading. Research shows that approximately 9% of women in Australia have obstructive sleep apnoea (OSA), and the majority remain undiagnosed. Sleep apnea symptoms in women are often different, subtler, and more frequently misattributed to depression, anxiety, or simply the demands of modern life.
At RSDC Melbourne, our sleep physicians regularly diagnose and treat sleep apnoea in women across all age groups — and we understand that the path to diagnosis is often longer and more complex for women than for men.
Why Is Sleep Apnea Underdiagnosed in Women?
Several factors contribute to the underdiagnosis of sleep apnoea in women:
- Different symptom presentation — women with OSA are less likely to report the “classic” symptoms of loud snoring and witnessed apnoeas (breathing pauses). Instead, they more commonly experience fatigue, insomnia, mood disturbance, and headaches.
- Hormonal protection before menopause — progesterone and oestrogen have a protective effect on upper airway muscle tone. This means OSA risk is lower in premenopausal women, but increases sharply after menopause.
- Symptom misattribution — fatigue, low mood, and poor sleep in women are frequently attributed to stress, thyroid problems, anaemia, or depression — delaying sleep apnoea investigation.
- Underrepresentation in research — historically, OSA clinical trials enrolled predominantly male subjects, meaning diagnostic criteria and awareness were developed around male presentations.
Sleep Apnea Symptoms in Women
Women with obstructive sleep apnoea may experience a different cluster of symptoms compared with men. Common sleep apnea symptoms in women include:
- Fatigue and exhaustion — persistent tiredness that does not improve with more sleep is one of the most common complaints. Unlike men, women are more likely to describe fatigue than excessive sleepiness.
- Insomnia and difficulty staying asleep — women with OSA frequently report trouble falling or staying asleep, rather than the oversleeping or napping seen in men.
- Morning headaches — caused by oxygen desaturation and elevated carbon dioxide during apnoeic events overnight.
- Mood changes, depression and anxiety — disrupted sleep architecture from OSA frequently causes or worsens low mood, irritability, and anxiety symptoms.
- Brain fog and concentration difficulties — cognitive impairment, poor memory, and difficulty focusing are commonly reported.
- Restless legs and frequent waking — women with OSA have higher rates of restless legs syndrome and periodic limb movement disorder.
- Snoring — present in many women with OSA, though often quieter or less consistent than in men, and more likely to be dismissed or unnoticed.
- Witnessed breathing pauses — less commonly reported by partners of women with OSA, as episodes may be shorter or less dramatic.
Risk Factors for Sleep Apnea in Women
While OSA can affect women at any age, certain factors significantly increase risk:
- Menopause — the most significant risk factor. After menopause, a woman’s risk of OSA increases two to three times, approaching that of men of the same age. Hormone changes reduce upper airway muscle tone and alter respiratory control.
- Polycystic ovary syndrome (PCOS) — women with PCOS have a substantially higher OSA prevalence, likely due to hormonal and metabolic factors.
- Pregnancy — gestational OSA is associated with hypertension, gestational diabetes, and adverse foetal outcomes. Women who snore during pregnancy should be assessed.
- Obesity — excess weight increases OSA risk in both sexes, with central adiposity being particularly significant.
- Anatomical factors — a small or recessed jaw (retrognathia), enlarged tonsils, or a narrow airway increase OSA risk.
- Family history — OSA has a genetic component affecting airway anatomy and respiratory control.
How Is Sleep Apnea Diagnosed in Women?
Diagnosis requires an overnight sleep study. At RSDC Melbourne, we offer home-based sleep studies — a portable monitoring device is delivered to your home, allowing you to sleep in your own environment. The device records breathing patterns, oxygen levels, heart rate, and sleep position overnight.
Results are reviewed by our accredited sleep physicians, who are experienced in identifying the subtler respiratory event patterns often seen in women, including hypopnoeas and REM-predominant OSA (which is more common in women and can be missed by less sensitive studies).
Treatment Options for Women with Sleep Apnea
Treatment for OSA in women follows similar principles to treatment in men, but individual factors — including menopausal status, comorbidities, and symptom profile — are taken into account:
- CPAP therapy — the most effective treatment for moderate to severe OSA. RSDC offers a bulk-billed CPAP clinic where sleep physicians and technicians guide you through initiation and mask selection.
- Mandibular advancement splint (MAS) — a custom-fitted dental device worn during sleep that repositions the jaw to prevent airway collapse. Often preferred by women with mild to moderate OSA.
- Sleep position therapy — for women whose OSA occurs predominantly in the supine (back sleeping) position.
- Weight management — for overweight patients, even modest weight loss can significantly reduce OSA severity.
- Hormone replacement therapy (HRT) — in postmenopausal women, HRT may improve OSA severity by partially restoring hormonal protection of upper airway tone. Discuss with your doctor.
- Management of comorbidities — treating underlying depression, anxiety, or thyroid conditions may improve sleep quality alongside direct OSA treatment.
When Should Women See a Sleep Specialist?
If you are a woman experiencing persistent fatigue, poor sleep quality, morning headaches, or mood disturbance that is not adequately explained by other conditions, it is worth asking your GP about a sleep apnoea assessment. This is especially important if you are postmenopausal, have PCOS, are pregnant, or have a family history of OSA.
At RSDC Melbourne, our sleep physicians provide compassionate, evidence-based care for women with sleep apnoea. We offer consultations and home sleep studies at five locations across Melbourne: Camberwell, Richmond, Knox, Ferntree Gully, and Balwyn North.
Ask your GP for a referral to RSDC, or contact our team directly to find out more about sleep apnoea assessment for women in Melbourne.
Related articles:
For a full overview of obstructive sleep apnoea — including causes, risk factors, and treatment — see our guide to what is OSA. A home sleep study is the most convenient first step toward diagnosis.
If you are diagnosed with OSA, CPAP therapy in Melbourne is the gold-standard treatment — or your physician may discuss a mandibular device as a CPAP alternative.
