The symptoms of sore legs when sleeping, the common reasons are the following: 1, due to excessive work or exercise during the day, resulting in muscle damage and strain on the legs, resulting in the accumulation of metabolic products. When sleeping, the blood circulation in the legs becomes slower, metabolites can not be removed in time, resulting in the symptoms of leg pain. 2, can be seen in the lack of warm leg coverage during sleep, including direct blowing of air conditioning, direct blowing of fans or lower temperatures, can lead to poor local blood circulation, resulting in the symptoms of pain. 3, can be seen in patients with lumbar disorders, during sleep when the bed is not Comfortable, too soft or too hard, will lead to the corresponding symptoms of soreness in the lower limbs. It is recommended that patients make a preliminary judgment in response to the above, and if the symptoms persist, are more serious and affect sleep, seek medical attention in a timely manner.