Sleeping with swollen eyes is considered to be caused by drinking a lot of water before going to bed, eye diseases, liver diseases, kidney diseases and so on. 1. Drinking a lot of water before going to bed: If you drink a lot of water before going to bed, due to water retention, it is easy to cause eye swelling. 2. Eye diseases: most often seen in infectious eye diseases, such as granuloma, conjunctivitis, keratitis, etc., may lead to eye swelling in bed, and may be accompanied by increased secretion, eye pain and other symptoms. 3. Liver diseases: for example, viral hepatitis, cirrhosis of the liver, etc., with the aggravation of the disease, may lead to patients with hypoproteinemia, resulting in impaired blood circulation, the eyes will appear edema, and may be manifested in other parts of the body edema. 4. Kidney disease: for example, nephritis, nephrotic syndrome, etc., will lead to a reduction of albumin in the blood, the body’s blood water increases, causing swelling of the eyes after sleeping. Sleeping with swollen eyes may also be caused by other reasons, you should go to the hospital, with the doctor to take the examination, clear cause after targeted treatment.