Muscle spasms due to pregnancy, exercise and dehydration are some causes of foot and toes cramps during the night, according to WebMD. Other causes of muscle spasms are blood-flow issues, thyroid disease and kidney disease.
Calcium, magnesium and potassium deficiencies are other causes of foot cramps while sleeping, states WebMD. Use of certain medications, such as birth control pills, antipsychotics, diuretics and steroids, are other possible causes of nocturnal foot and toe cramps. Vitamin D deficiency, abnormal electrolyte levels and nerve damage are additional causes of foot and toe cramps, as noted by MedlinePlus.
Most nighttime leg cramps, which include foot and toe cramps, are harmless, according to Mayo Clinic. The most frequent causes are muscle fatigue and nerve issues. The risk and frequency of having leg cramps at night increase with age. Although rare, nighttime leg cramps are a possible sign of an underlying disorder. Peripheral artery disease, diabetes, spinal stenosis and restless leg syndrome are some specific conditions that cause frequent nighttime leg cramps.
Staying hydrated and active combats nighttime foot and toe cramps, advises MedlinePlus. Calcium and vitamin D supplements may help if the foot and toe cramps are related to calcium of vitamin D deficiencies. If the foot and toe spasms are recurrent, the individual should consult with a physician.