Why You Keep Waking Up Between 3 a.m. and 5 a.m.

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1. Stress and Anxiety (The #1 Culprit)

 

This is the most frequent cause. When you’re stressed, your body’s cortisol (a stress hormone) levels can spike prematurely in the early morning hours, pulling you out of sleep.

  • Why it happens: Your body is preparing for the day ahead, and if you have underlying anxiety, this « alarm » can go off too early.
  • The Vicious Cycle: You wake up, start worrying about being tired, which creates more anxiety, making it impossible to fall back asleep.

2. Sleep Cycle Misalignment

You naturally transition between light and deep sleep throughout the night. The early morning hours are dominated by lighter sleep (REM sleep).

  • Why it happens: Any slight disturbance—a noise, a change in temperature, or a full bladder—is enough to wake you during this light sleep phase.

3. Lifestyle Habits

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