What Is Sleep Apnea? Symptoms, Causes & Treatment

If you've been told you snore loudly, you wake up gasping for air, or you can't shake the exhaustion no matter how early you go to bed, sleep apnea could be the reason. It's one of the most common sleep disorders worldwide — and one of the most under-diagnosed, since many people simply don't realise anything is wrong while they're asleep.

This guide covers what sleep apnea actually is, the different types, what causes it, how it's diagnosed, and what treatment looks like if you're dealing with it here in Dubai or elsewhere in the UAE.

What Is Sleep Apnea?

Sleep apnea is a condition where your breathing repeatedly stops and starts while you sleep. In the most common form, the muscles at the back of your throat relax enough that your airway narrows or briefly closes off. Air can't get through properly, so your breathing pauses — sometimes for just a few seconds, sometimes for over a minute.

Each pause triggers your brain to briefly wake you up, just enough to reopen your airway and resume breathing. This can happen dozens or even hundreds of times a night. Most people don't remember any of these micro-awakenings, but the constant interruption prevents deep, restorative sleep — which is why so many people with sleep apnea wake up feeling like they never slept at all.

The Three Types of Sleep Apnea

Obstructive Sleep Apnea (OSA)

The most common form, accounting for the vast majority of cases. It happens when the throat muscles relax and physically block the airway during sleep.

Central Sleep Apnea (CSA)

Less common, and different in cause: here, the airway isn't blocked at all. Instead, the brain temporarily stops sending the signals needed to breathe. CSA is often linked to underlying conditions affecting the heart or nervous system.

Complex Sleep Apnea

Sometimes called treatment-emergent central sleep apnea, this is a combination of both obstructive and central sleep apnea, occasionally appearing in people being treated for OSA.

Common Signs and Symptoms

Sleep apnea shows up differently at night than it does during the day, which is part of why it often goes unnoticed for years.

At Night

• Loud, persistent snoring
• Gasping or choking sounds during sleep
• Pauses in breathing witnessed by a partner
• Frequent waking or restless sleep
• Night sweats

During the Day

• Morning headaches
• Excessive daytime sleepiness, even after a full night in bed
• Difficulty concentrating or memory lapses
• Irritability or low mood
• Dry mouth or sore throat on waking

If several of these sound familiar, it's worth getting checked rather than assuming it's just poor sleep or stress.

What Causes Sleep Apnea?

A few factors are consistently linked to a higher risk of developing sleep apnea:

• Excess weight, particularly extra tissue around the neck and throat
• Naturally narrow airway, jaw structure, or enlarged tonsils and adenoids (more common in children)
• Getting older — airway muscle tone naturally decreases with age
• A family history of sleep apnea
• Smoking, which increases airway inflammation and fluid retention
• Alcohol or sedative use before bed, which relaxes throat muscles further
• Chronic nasal congestion or allergies
• Sleeping on your back, which makes airway collapse more likely

Who's More at Risk in the UAE?

Sleep apnea isn't unique to any one country, but a few things about life in the UAE make it worth paying particular attention to. Long working hours, shift-based jobs, and a largely indoor, air-conditioned lifestyle for much of the year can all contribute to weight gain and reduced physical activity — both established risk factors. Commercial drivers and shift workers in particular are worth mentioning: excessive daytime sleepiness from untreated sleep apnea is a genuine road safety concern, which is increasingly being recognised by transport authorities in the region.

Worldwide, researchers estimate that close to a billion adults live with obstructive sleep apnea, and a large share of them don't know it. There's no reason to think the UAE's numbers look meaningfully different — which is exactly why awareness matters here as much as anywhere else.

How Is Sleep Apnea Diagnosed?

A diagnosis starts with a sleep study, which measures things like breathing pauses, oxygen levels, and heart rate while you sleep. There are two main ways to do this:

• In-lab polysomnography — an overnight study at a sleep clinic, monitored by a technician
• Home sleep apnea testing — a portable device you wear overnight in your own bed, reviewed afterward by a physician

Home testing has become a popular first step for many people, since it's more convenient and often faster to arrange. The WatchPAT One home sleep apnea test is one option we carry — a single-use device that tracks breathing, oxygen levels, and sleep stages from home, with results reviewed by a physician.

Your results are typically expressed as an AHI (Apnea-Hypopnea Index) — the number of breathing interruptions per hour — which your doctor uses to classify severity as mild, moderate, or severe and to guide the right next step.

Sleep Apnea Treatment Options

Treatment depends on the type and severity of sleep apnea, and should always be guided by your doctor's recommendation. In broad terms, the options are:

CPAP, APAP & BiPAP Therapy

The most common and effective treatment for moderate to severe sleep apnea is positive airway pressure therapy — a machine that keeps your airway open with a steady flow of air through a mask. There are a few different types depending on your prescription; we've broken down the differences between CPAP, APAP, and BiPAP machines if you'd like the full comparison. You can browse our range of CPAP machines, auto-adjusting APAP machines, and BiPAP machines, or read our guide on how to choose the right machine for your needs if you're not sure where to start.

Lifestyle Changes

For mild cases, or alongside other treatment, changes like losing excess weight, avoiding alcohol close to bedtime, sleeping on your side instead of your back, and treating nasal congestion can meaningfully reduce symptoms.

Oral Appliances and Surgery

For select cases — often mild OSA, or when CPAP isn't well tolerated — a dentist or sleep specialist may recommend an oral appliance that repositions the jaw during sleep. Surgery is generally reserved for specific structural causes and is considered only after other options have been explored.

Why Untreated Sleep Apnea Matters

Sleep apnea is treatable, but left unaddressed, it's associated with more than just tiredness. Research links untreated sleep apnea to a higher risk of high blood pressure, heart disease, irregular heartbeat, stroke, and type 2 diabetes. It's also connected to a higher risk of daytime accidents, particularly while driving, and can put a real strain on mood, relationships, and day-to-day focus. None of this is meant to alarm you — it's simply the reason getting evaluated sooner rather than later is worth prioritising.

Getting Tested and Treated in Dubai and the UAE

If any of this sounds familiar, the first step is a conversation with your doctor about a sleep study — whether that's an in-lab test or a home test like the WatchPAT One. Once you have a diagnosis and prescription, our team at CPAP Medical Trading in Business Bay, Dubai can help you find the right machine and mask for your needs. You're welcome to upload your prescription when ordering, or book a free consultation if you'd like guidance before you buy.

Prefer to talk it through in person? Visit our Business Bay showroom, or reach us directly on our contact page or WhatsApp. If you're weighing up where to buy, here's why it's worth choosing a local Dubai specialist over an overseas retailer.

— The CPAP Med Trade Team