The following reasons are common for sleeping with muscle pain at night: First, overexertion: such as long working hours during the day, or excessive work intensity, or excessive fitness exercise, can lead to serious strain on the muscles of the whole body, resulting in obvious symptoms of exertion, the patient can have clinical manifestations of generalized pain, accompanied by weakness of the limbs, needing rest to make clinical symptoms can be significantly relieved. Second, serious diseases: patients suffering from serious diseases, such as cerebral hemorrhage, cerebral embolism, and even femoral head necrosis, need long-term bed rest, which will eventually cause continuous pressure on the muscles of the whole body, and the metabolic level will drop significantly, resulting in excessive accumulation of lactic acid in the muscles, thus causing clinical manifestations of generalized muscle aches and pains. After early diagnosis and early treatment, the soreness can be relieved quickly.