Night cramps—sudden, involuntary muscle contractions during sleep—often strike the calves, thighs, or feet, disrupting rest and causing sharp discomfort. While anyone can experience them, certain groups are more vulnerable.

Older adults are especially prone, with nearly one in three over 60 affected. Age-related factors like reduced muscle elasticity, slower circulation, and diminished nerve function make cramping more likely at night.

Pregnant women often face night cramps due to added leg pressure, hormonal shifts, and disrupted electrolyte balance, particularly in the third trimester.

Athletes and active individuals may also suffer cramps from overworked muscles, dehydration, and lost electrolytes (magnesium, potassium, calcium) through sweat.

Conversely, sedentary lifestyles can increase cramp risk. Long hours sitting or standing still impair circulation, leading to stiff, fatigued muscles.

Underlying medical conditions—like diabetes, kidney disease, thyroid disorders, or poor circulation—can make cramps frequent and more severe, warranting medical attention.

Certain medications, including diuretics, statins, and some hormonal treatments, may also trigger cramping by altering electrolyte levels.

If night cramps persist, it’s wise to examine lifestyle, hydration, medications, and consult a healthcare provider when needed.