12-year-old children sleeping too much bedwetting if only occasionally, generally is a normal phenomenon, if often occur, usually belong to the abnormal situation. Bedwetting is more common among children, if 12-year-old children sleep too much bedwetting only occasionally, may be more excited to play during the day or too tired, the night sleep is more heavy caused by this situation generally do not need to worry too much, is a normal phenomenon. But if 12-year-old children often appear to sleep too heavy bedwetting, it may be an abnormal phenomenon, may be suffering from diseases, such as neurological diseases, systemic diseases and urinary system diseases. If 12-year-old children often wet the bed, must actively go to the regular hospital, clear what causes, follow the doctor’s advice to use the appropriate treatment program, so as not to delay the condition of the child’s physical health.