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, the 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 your sleep. Aligned with this year’s World Sleep Day theme, “Sleep Well, Live Better,” Samsung is turning the invisible signs of sleep apnea into actionable insights through its Galaxy Watch series, helping those affected improve their sleep habits and overall health.
[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.
