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

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

Your daily choices have a direct impact on your sleep quality.

• Caffeine/Alcohol: A late-afternoon coffee or a « nightcap » can disrupt your sleep cycle later in the night.

• Late-Night Meals or Screens: Eating too close to bed taxes your digestion, while the blue light from phones and TVs suppresses melatonin, your sleep hormone.

4. Underlying Health Conditions

Certain medical issues can fragment sleep:

• Sleep Apnea: Breathing pauses can cause you to wake up gasping or choking.

• Acid Reflux (GERD): Lying down can allow stomach acid to creep up, causing discomfort.

• Arthritis or Chronic Pain: Discomfort can become more noticeable when you’re still for long periods.

5. Hormonal Shifts

• Aging: As we get older, sleep naturally becomes lighter and more fragmented.

• Menopause: For women, night sweats and hot flashes are a common cause of nighttime waking.