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Science explains why you wake up at 3 a.m., and how to go back to sleep

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Why This Matters

Understanding the biological causes of middle-of-the-night awakening offers valuable insights for both consumers and the tech industry, especially in developing sleep-tracking devices and apps that can better address insomnia. Improving sleep quality has broad implications for health, productivity, and overall well-being. This knowledge empowers individuals to adopt more effective strategies for restful sleep, potentially reducing reliance on medication.

Key Takeaways

About one in five people have middle-of-the-night insomnia. What should you do if you wake up in the middle of the night and can’t fall back asleep? This is one of the most common—and frustrating—forms of insomnia. It turns out there’s a biological reason for it. And there are things you can do that may help you drop off again quickly.