[World Sleep Day 2026] How Samsung Is Tackling Sleep Apnea to Energize Your Day

Millions worldwide suffer from sleep apnea, but 80% of sufferers[1] don’t even know they have it. This serious condition causes people to pause breathing while asleep, potentially disrupting oxygen supply, lowering sleep quality, and leading to health complications including hypertension and stroke. Despite these risks, this disorder largely goes unnoticed because getting a diagnosis usually requires time-consuming and costly in-lab sleep studies.

To mark World Sleep Day 2026, a global study of Samsung Health users[2] is shedding new light on the true extent of the condition and the disruptive impact it has on individuals who suffer with sleep apnea. Aligned with this year’s World Sleep Day theme, “Sleep Well, Live Better,” Samsung is helping to turn the invisible signs of sleep apnea into actionable insights through its Galaxy Watch series, helping those affected improve their sleep habits and overall health.

Image: Infographic including all key data on impact of sleep apnea

How Does Sleep Apnea Impact Sleep?

The report found that 23% of study participants are at risk of sleep apnea.

“The microarousals and awakenings that follow breathing pauses fragment your sleep,” explains behavioral sleep scientist Dr. Vanessa Hill. “Those occurrences can prevent the brain from staying in the REM and deep sleep stages necessary for cognitive and physical restoration.”

The report shows these constant disruptions take a direct toll on sleep duration and quality, leading to:

• Reduced REM Sleep: Participants with moderate to severe sleep apnea indicators detected by their Galaxy Watch got around four minutes less rapid eye movement (REM) sleep, the phase where our brains process emotions, consolidate memories and cement learning. Without enough REM sleep, people can experience mood instability and memory problems, impacting performance at work and overall well-being.
• Less Deep Sleep: Sleep apnea also robs sufferers of deep sleep, approximately eight minutes less per night, on average. This is the body’s critical physical restoration phase, where the growth hormone is released, muscles are repaired, and your immune system is activated. Losing out on deep sleep is why sleep apnea sufferers may feel physically exhausted, have slower recovery times, and get sick more often.
• Frequent Nightly Awakenings: Study participants with signs of sleep apnea also woke up regularly during the night and stayed awake around four minutes longer. These interruptions derail the sleep cycle, locking individuals into lighter, less restorative stages and making next-day exhaustion inevitable, no matter how long the affected individual slept.
• Shorter Sleep Duration: Overall, people with a higher likelihood of sleep apnea averaged around 12 minutes less sleep. While this loss may seem minor, it can have a significant impact on overall sleep quality as your sleep cycle gets fragmented throughout the night.

Why It Matters: “Even a small loss in sleep duration is compounded by a larger loss of sleep quality,” said Dr. Hill. “This can be the difference between simply being ‘in bed’ and getting restorative rest, which could be why people feel so tired the next day.”

Dr. Hill also advocates a multidimensional approach to sleep health. “Sleep apnea affects many dimensions of sleep—duration, quality, sleep efficiency and even daytime fatigue,” she stated. “They together help determine our health and functioning.”

With sleep apnea shown to impact all aspects of sleep and lead to other health complications, detection is an essential first step in the fight against the condition.

How Does the Galaxy Watch Help Detect Sleep Apnea?

Image: UI of Sleep Apnea feature

For years, sleep apnea has been difficult to detect due to the need for inconvenient in-lab sleep studies. However, Samsung is now making at-home detection with a first-of-its-kind Sleep Apnea[3] feature on your Galaxy Watch.

• How It Works: Users simply track their sleep with a compatible Galaxy Watch[4] for more than four hours over two nights within a ten-day period. Available through the Samsung Health Monitor app, the Sleep Apnea feature enables users to proactively spot signs of the condition. Initially launched in Korea, the feature has received a Medical Device License from Health Canada as of September 2024 and is now available in 78 markets[5] worldwide and counting.
• The Technology: ). Leveraging the Galaxy Watch’s BioActive Sensor, the feature tracks blood oxygen levels to determine when the user stops breathing (apnea) or is not breathing at a sufficient level (hypopnea). Based on this data, the feature estimates the user’s Apnea-Hypopnea Index (AHI), which indicates the severity of obstructive sleep apnea (OSA).
• From Awareness to Action: By detecting signs of sleep apnea early, the feature provides the data needed for an informed consultation with a medical professional. In addition to detecting the signs of sleep apnea, your Galaxy Watch can help you build habits for better holistic sleep health. Features include the Sleep Coaching[6] program for detailed analysis and tips on how to improve sleep quality and Bedtime Guidance,[7] which recommends your optimal bedtime to ensure you consistently get enough sleep.

“For years, the inconvenience of an in-lab clinical sleep study has been a barrier to diagnosing sleep apnea,” added Dr. Hill. “Wearable technology such as Galaxy Watch is a breakthrough because it democratizes that first step. It allows people to gather meaningful data from their own beds, providing a starting point for a conversation with a healthcare professional.”

Take Control of Your Night

A good night’s sleep is the first step toward a healthier, more energized life, and Samsung is here to help guide you. Samsung’s ecosystem offers end-to-end care, from detecting signs of sleep apnea on your Galaxy Watch to providing suggestions for building better holistic sleep health.to connecting you with professional advice through our health network.

Looking ahead, Samsung is constantly innovating and improving the Sleep Apnea feature to make it even more powerful with sharper insights. Prioritize your rest today to unlock a healthier tomorrow.

[1]“Obstructive Sleep Apnea National Indicator Report,” American Academy of Sleep Medicine (2023)

[2]Samsung Health users from the U.S., South Korea, Brazil, Canada, Mexico, Russia, Chile, South Africa, and the Philippines participated in the study from January–June 2025.

[3]The Sleep Apnea Feature is an over-the-counter (OTC) software-only, mobile medical application operating on a compatible Samsung Galaxy Watch and Phone. It is intended for on-demand use, to detect signs of moderate to severe obstructive sleep apnea in the form of significant breathing disruptions over a two-night monitoring period. Not intended for use by people under 22 years or, or who have previously been diagnosed with sleep apnea, are pregnant, or have any of the following conditions: Parkinson’s, tremor, Periodic Leg Movement During Sleep, congestive heart failure, atrial fibrillation, chronic obstructive pulmonary disease, chronic bronchitis, emphysema, or pulmonary fibrosis. Users should not interpret or take clinical action based on the device output without consultation with a qualified healthcare professional. Not intended to replace traditional methods of diagnosis or treatment, and the data provided by this feature is not intended to assist clinicians in diagnosing sleep disorders. Results displayed are for informational purposes only. Please consult a medical professional for advice. UI may vary depending on the software version, country, or region. For full terms and conditions of use, please refer to the Instructions for Use on your device. Sleep Apnea feature has received a Medical Device License from Health Canada as of September 2024.

[4]Availability may vary by market, carrier, model, or a paired smartphone. Available on Galaxy Watch4 series and later models. The watch requires the Wear OS 5.0 version or later and must be paired with a Samsung Galaxy smartphone with Android 12.0 or later.

[5]Supported markets include Australia, Austria, Azerbaijan, Bahrain, Belgium, Bolivia, Brazil, Bulgaria, Canada, Chile, Christmas Island, Cocos (Keeling) Islands, Croatia, Cyprus, Czech Republic, Denmark, Dominican Republic, Ecuador, Egypt, El Salvador, Estonia, Faroe Islands, Finland, France, Georgia, Germany, Greece, Guatemala, Hong Kong, Hungary, Iceland, Iraq, Ireland, Israel, Italy, Jordan, Kuwait, Latvia, Lebanon, Lithuania, Luxembourg, Malaysia, Mauritius, Mayotte, Mexico, Netherlands, Nicaragua, Norfolk Island, Norway, Oman, Panama, Paraguay, Peru, Philippines, Poland, Portugal, Qatar, Romania, Russia, Réunion, Slovakia, Slovenia, South Africa, South Korea, Singapore, Spain, Sri Lanka, Sweden, Switzerland, Syria, Taiwan, Thailand, United Arab Emirates, United Kingdom, United States, Venezuela, Vietnam, Yemen.

[6]Required Samsung Health application version 6.24 or later. Samsung account login required. Sleep coaching requires sleep data for at least 7 days. Intended for general wellness and fitness purposes only. Not intended for use in detection, diagnosis, treatment of any medical condition or diseases. The measurements are for your personal reference only. Please consult a medical professional for advice. Accuracy of results is not guaranteed.

[7]Bedtime guidance is available on Android phone (Android 10 or above) and requires Samsung Health app (v6.30 or later). Samsung account login required. Bedtime guidance is based on 3 days of sleep analysis of user’s sleep patterns. Not intended for use in detection, diagnosis, treatment of any medical condition or diseases. The measurements are for your personal reference only. Please consult a medical professional for advice. Accuracy of results is not guaranteed.