Waking at 3 a.m. with a racing mind is a familiar experience — and one this article examines through the lens of sleep science, with insights from The Sleep Ambassador®.

Middle-of-the-night anxiety is amplified by the body’s circadian rhythm: cortisol and other stress responses interact with fragmented sleep to make small worries feel enormous. Understanding that mechanism is the first step to taming it — along with practical sleep strategies for protecting the rest of the night.

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