**Nighttime leg cramps**, also called nocturnal leg cramps, are sudden, painful muscle spasms usually affecting the calves or feet during sleep. These cramps can wake you up abruptly, causing intense discomfort and a tight, knotted feeling in the muscles.
Common causes include **dehydration**, **electrolyte imbalances**, **poor circulation**, and **mineral deficiencies**, especially in **magnesium** and **potassium**. According to the article, “medications” and **certain health conditions like kidney failure or diabetes** can also increase the risk.
Other triggers include **intense exercise**, **prolonged sitting or standing**, and **pregnancy**. As we age, leg cramps tend to become more frequent.
Experts note that while these cramps are usually harmless, they can sometimes point to **underlying health issues**.
To manage them, **stay hydrated**, **stretch regularly**, and **maintain a balanced diet**. If cramps persist, it’s advised to speak with a healthcare provider.