Sleeping body itching may be mite infection, and may be caused by chronic eczema, pruritus, scabies and other diseases. 1. Mite infection:If there are mites in bed linen, covers and other bedding, then after sleeping at night, the mites crawl to the human skin, which will have an irritating effect on the skin, and itchy symptoms will occur. 2. Chronic eczema: the cause of this disease is more, common chronic infection foci, blood circulation disorders, food, animal fur, inhalants, etc., often with conscious itching symptoms, aggravated at night, lesions manifested as papules, erythema, erythroderma, and so on. 3. Pruritus: the etiology of this disease is relatively complex, the most common causes include dry skin, neurological dysfunction, mental stress, uremia, bed sheet covers, etc. Usually there is no skin damage, mainly manifested as itchy skin symptoms, may be aggravated at night. 4. Scabies: due to skin infection caused by scabies mites, and scabies like nighttime activities, so patients suffering from scabies will sleep with the body itching. It is recommended that patients usually dry clothes and blankets diligently, open windows and ventilation, if necessary, to the regular hospital dermatology consultation, under the guidance of the doctor to clarify the cause of the disease, targeted treatment.