Why do many elderly people wake up at 3 a.m. and what might it mean for their rest?

3. Physical discomfort and health factors

The body may also wake up in response to mild physical discomfort that isn’t obvious during the day.

Common contributors include:

  • Arthritis or joint pain
  • Back discomfort
  • Acid reflux at night
  • Dry mouth
  • Muscle cramps
  • Temperature fluctuations

Needing to use the bathroom is especially common. As the bladder becomes more sensitive with age, nighttime trips may increase.

Certain medications can also influence sleep by causing:

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