Sleep
Why You Wake Up at 3 A.M. (and What to Do About It)
Middle-of-the-night waking is normal. Lying awake for an hour afterward is the part worth fixing — here's what's usually driving it.
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Category: Sleep
Sleep structure, routines, and common disruptions.
Guide
The Complete Guide to Better Sleep
How sleep is actually structured, the two systems that control when you feel sleepy, a practical routine that works, and how to tell ordinary…
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