Children’s sleep convulsions are generally abnormal and may be caused by hypocalcemia, seizures, hypoglycemia, fever, nightmares and other causes. 1. Hypocalcemia: serum calcium ions have the effect of antagonizing sodium ions and decreasing nerve excitability, and increased nerve excitability in hypocalcemia can lead to twitching and restlessness during sleep. 2. Epileptic seizures: children sleep with localized abnormal discharges of neurons in the brain leading to epileptic seizures, which can lead to convulsions. 3. Hypoglycemia: Hypoglycemia may occur at night when the child eats too little, resulting in symptoms such as panic, sweating and even convulsions. 4. Fever: Bacteria, viruses and other pathogens infected with the external heat source, causing the hypothalamus thermoregulation point to rise, severe hyperthermia will lead to central nervous system dysfunction and convulsions. 5. Nightmares: Children who have nightmares during sleep and are frightened may also have convulsions. Children’s sleep convulsions may be related to a variety of factors, it is recommended to consult a doctor for a clear diagnosis, timely and targeted treatment, to avoid missing the opportunity for treatment.