Sleep Apnoea Symptoms and Warning Signs

Quick answer: Sleep apnoea shows up in two places: what happens in your bedroom overnight, and what fatigue does to your daytime. Snoring, witnessed pauses, gasping and night-time toilet trips belong to the first group; headaches, poor concentration and sleepiness belong to the second. A handful of signs, such as waking choking or severe drowsiness while driving, deserve prompt medical attention.

What is actually happening

Obstructive sleep apnoea occurs when the muscles holding your upper airway open relax too much during sleep. The airway narrows or collapses, airflow stops, oxygen dips, and your brain nudges you awake just enough to restart breathing. These events can repeat dozens or even hundreds of times a night, which is why you can sleep a full eight hours and still wake exhausted. Each event is brief, so people almost never remember them.

Symptoms that happen overnight

• Loud, ongoing snoring, often described by partners as heavy, irregular or fence-rattling.
• Witnessed pauses in breathing, when someone sees or hears you stop, then restart with a snort or gasp.
• Gasping, snorting or choking during the night, sometimes enough to fully wake you.
• Waking with a dry mouth or sore throat, a product of mouth breathing and snoring.
• Needing to urinate during the night more than you used to, sometimes two or more trips.
• Restless or broken sleep, frequent position changes, or night sweats.

Symptoms you notice during the day

• Waking unrefreshed, as though sleep did not touch the sides.
• Persistent daytime sleepiness, nodding off in meetings, on public transport or in front of the television.
• Concentration and memory problems, losing drift of tasks, rereading the same paragraph.
• Morning headaches, often at the front of the head, easing within a couple of hours.
• Low mood, irritability or anxiety, sometimes blamed on life stress alone.
• Reduced libido, which people rarely connect to sleep.
• Weight creep, since disturbed sleep can affect appetite hormones.

If you recognise yourself in several of these, our guide on how to tell if you have sleep apnoea walks through a simple way to organise the evidence before seeing your GP.

Red flags that need prompt review

Most apnoea symptoms can wait for a routine GP appointment. Some cannot. Seek medical help urgently if you or a bed partner notice:

• Long pauses in breathing that clearly stretch well beyond a few seconds, or long stretches of pauses in a row.
• Repeatedly waking choking, or waking with a racing heart and a feeling of not getting air.
• Chest pain, chest pressure or breathlessness at night, which should never be written off as snoring.
• Severe sleepiness while driving, micro-sleeps, or nodding off within minutes of sitting down.

For anything that feels like an emergency, including chest discomfort or trouble breathing, call 000. If you are unsure whether symptoms need urgent care but it is not an emergency, call 13 HEALTH (13 43 25 84) any hour for advice from a registered nurse. Snoring that has slowly worsened over months, or new sleepiness after starting strong pain medication, also justifies an earlier appointment than the next routine visit.

How symptoms differ in men and women

Sleep apnoea is more common in men, and men tend to present in the textbook way: loud snoring, witnessed apnoeas, obvious daytime sleepiness. Women more often lead with fatigue, insomnia, morning headaches and mood symptoms, and their snoring is frequently quieter or reported as "light". This mismatch explains in part why apnoea in women is diagnosed later, sometimes years after symptoms begin. Risk also rises around menopause.

The practical takeaway for women: if exhaustion and unrefreshing sleep persist despite reasonable sleep hours, ask your GP about a sleep assessment even if nobody has ever complained about your snoring. The same home sleep tests and clinic studies used for men work just as well for women.

Symptoms in older adults are often mistaken for normal ageing

In people over 65, apnoea commonly hides behind labels like "getting older". Daytime napping, waking early, poorer concentration, low mood and night-time wandering to the toilet all get shrugged off as inevitable. They are common, but they are also classic apnoea territory, and untreated apnoea in later life has been associated with worse blood pressure control, falls risk and cognitive complaints. Older adults benefit just as much from treatment as younger people do, and some evidence suggests they tolerate CPAP at least as well.

If you are reading this about a parent, ask gently whether anyone has heard pauses in their breathing at night, and consider going along to their GP appointment.

Taking the next step

Symptoms give you the reason; a recording gives the diagnosis. Most people start with a GP visit, then either a home sleep test or an overnight clinic study. Our sleep study near me guide explains what each involves, and our sleep doctor near me page covers how specialist assessment works. You do not need to be certain apnoea is the cause before asking your GP about sleep testing. Persistent symptoms are reason enough.

Frequently Asked Questions

What are the first signs of sleep apnoea?

The earliest signs are usually loud snoring that someone else complains about, plus mornings that start with a dull headache and days that feel foggy despite enough hours in bed. Witnessed pauses in breathing are the most specific sign of all. Individually these can have other explanations, so look for a pattern that persists over weeks rather than a single bad night.

Can you have sleep apnoea without snoring?

Yes, though it is less common. Some people, particularly women and people with smaller airways, have repeated breathing pauses without noisy snoring, and their main complaint is exhaustion, insomnia or headaches. Silence does not rule out apnoea. If daytime symptoms are strong, discuss a sleep test with your GP rather than talking yourself out of it.

When should sleep apnoea be treated as an emergency?

Call 000 if someone stops breathing for a prolonged period and does not restart, or if there is chest pain, severe breathlessness or collapse. Call 13 HEALTH (13 43 25 84) for non-urgent advice at any hour. Severe sleepiness behind the wheel is also an emergency in the practical sense: pull over before you fall asleep, and raise the symptom with a doctor promptly.

Does sleep apnoea go away on its own?

Mild positional apnoea can improve with weight change, alcohol reduction or changed sleeping position, but established sleep apnoea rarely disappears without treatment. It also tends to worsen gradually as muscles lose tone with age. That is not a reason to panic, but it is a reason to get tested now rather than revisiting the question in five years.