Sleep apnoea is two to three times more common in men than in women of the same age. Yet the majority of affected men have never been diagnosed. The gap is not because their symptoms are subtle. It is because men are more likely to dismiss them.
Obstructive sleep apnoea (OSA) occurs when the muscles supporting the upper airway relax during sleep, causing the throat to narrow or close temporarily. Breathing stops for seconds at a time, sometimes dozens or hundreds of times per night. Each event briefly rouses the brain just enough to restart breathing, without the person waking fully or remembering it in the morning.
Men are at higher risk for several reasons. Fat distribution in men tends toward the neck and upper body, narrowing the airway. Male airway anatomy is longer and more prone to collapse. A neck circumference above 17 inches (43 cm) is an established risk factor independent of overall weight. Alcohol, which is consumed in larger quantities on average by men, relaxes the throat muscles that protect the airway during sleep.
The result is a condition that most commonly presents in the way described below, and that most men either explain away or never connect to their sleep at all.
Snoring loud enough to disturb others, or to wake yourself
Loud snoring is the most common symptom of obstructive sleep apnoea in men, and it is often the reason a partner finally raises a concern. It is not simply an inconvenience. It is the sound of a partially obstructed airway vibrating under the effort of breathing. Men tend to have longer, more collapsible airways than women, which is one reason snoring is so prevalent in this group. Snoring audible through a closed door, snoring that has caused a partner to move to another room, or snoring that wakes you up are all worth investigating.
A partner or family member has seen you stop breathing during sleep
This is the strongest single clinical predictor of obstructive sleep apnoea. Witnessed apnoeas, where someone observes you pausing in your breathing, gasping, choking, or snorting awake, are highly specific for the condition. Many men only seek assessment when a partner has become genuinely worried. If this has been reported to you, a sleep assessment is not optional. It is necessary.
Waking exhausted no matter how many hours you sleep
Men commonly attribute persistent tiredness to a heavy workload, young children, stress, or simply getting older. But waking after seven or eight hours feeling as though you have barely rested is not a normal part of any of those things. Repeated apnoea events throughout the night prevent the brain from reaching the deeper, restorative stages of sleep. You may be spending adequate time in bed; the quality of that time is the problem.
Struggling to stay alert during the day, including behind the wheel
There is a meaningful difference between feeling tired and struggling to stay awake when alertness matters. Difficulty concentrating in meetings, falling asleep in front of the television within minutes of sitting down, or feeling drowsy whilst driving, even on short or familiar routes, are clinically significant. For men who drive regularly, or professionally as an HGV, bus, or taxi driver, excessive daytime sleepiness from untreated sleep apnoea carries both safety and legal implications.
Recurring headaches on waking
Headaches present first thing in the morning, typically dull, felt across both sides of the head, and resolving within an hour or two of getting up, are a recognised feature of obstructive sleep apnoea. They are caused by repeated drops in blood oxygen and rises in carbon dioxide during apnoea events overnight. Men who have come to accept morning headaches as normal, or who attribute them to dehydration or alcohol, may be missing an underlying explanation.
Getting up to urinate once or more every night
Nocturia in men over 40 is almost always attributed to prostate changes. In many cases, however, obstructive sleep apnoea is the actual cause. Repeated apnoea events increase circulating levels of atrial natriuretic peptide, a hormone that promotes urine production. Men who have had a prostate evaluation with no significant findings and continue to experience nocturia should consider a sleep assessment. Treating the sleep apnoea often resolves the nocturia without any further intervention.
High blood pressure, or blood pressure that is difficult to control
OSA is a well-established secondary cause of hypertension. Men with blood pressure that is resistant to medication, requiring two or more antihypertensive agents to control, are significantly more likely to have underlying sleep apnoea than the general population. NICE guidance specifically identifies obstructive sleep apnoea as a cause to consider in resistant hypertension. Treating the underlying sleep disorder often reduces blood pressure alongside it.
Mood changes: irritability, low patience, or flat motivation
Men tend to attribute mood changes to external pressure rather than a physical cause. Increased irritability, reduced tolerance, low motivation, and a persistent flatness of mood are all consistently associated with chronic sleep fragmentation caused by untreated OSA. In some cases, men are treated for depression or anxiety for months or years before the underlying sleep disorder is identified. If mood changes have appeared gradually without a clear cause, sleep quality is worth investigating.
Cognitive decline: focus, memory, and decision-making
Patients describe it in different ways: difficulty finding words, slower thinking, reduced ability to concentrate for sustained periods, poorer short-term memory. These changes are subtle enough to attribute to ageing or workload, but they are well documented in people with untreated sleep apnoea and typically improve substantially with treatment. If mental sharpness at work has quietly declined without clear explanation, sleep quality is a reasonable place to look.
Reduced libido or changes in sexual function
This is the symptom most likely to go unreported because it appears unrelated to sleep. The clinical connection is direct. Obstructive sleep apnoea causes repeated drops in blood oxygen saturation overnight, and this suppresses testosterone production. Studies consistently show that men with moderate to severe OSA have significantly lower testosterone levels than men without the condition. Treating sleep apnoea has been shown to improve testosterone levels and sexual function in affected men. If changes in libido have been attributed to age or stress, sleep quality is worth investigating before other explanations are pursued.
Home Sleep Testing
Recognise any of these symptoms?
A home sleep assessment takes one overnight test and delivers clinician-reviewed results, with no GP referral and no waiting list. Results within 2 working days of your test night.
Learn about home sleep testingWhy men miss the diagnosis
The most common reason men with sleep apnoea go undiagnosed is not that their symptoms are absent. It is that they normalise them.
“I've always snored.” “Everyone gets tired at my age.” “I've been under a lot of pressure at work.” “Getting up once in the night is just what happens when you get older.” These explanations are understandable. They are also, in many cases, incorrect.
The average time between onset of symptoms and diagnosis in the UK is several years. Untreated sleep apnoea is associated with high blood pressure, cardiovascular disease, type 2 diabetes, depression, and impaired cognitive function. These consequences compound over the years a diagnosis is delayed.
Any combination of two or more of the symptoms listed above is a reasonable basis for a sleep assessment. You do not need a GP referral and you do not need to wait for symptoms to become severe. A home sleep test, using the same WatchPAT technology recommended by NICE, can be completed overnight in your own home. A qualified clinician reviews every result, and you receive a plain-English explanation of your findings along with clear guidance on what to do next.
A note on this article
This article is a clinician-written guide to symptoms, not a diagnostic tool. A formal diagnosis of obstructive sleep apnoea requires an overnight sleep study interpreted by a qualified clinician. If you have significant symptoms, particularly observed apnoeas or excessive daytime sleepiness affecting your ability to drive, please speak to your GP or arrange a private assessment promptly.