Stinging and tearing of the eyes in the middle of the night in bed may be a result of an inflammatory condition in the eye area, and the patient often also has redness and pain in and around the eye. In addition there is a foreign body in the eye, or due to other diseases that cause proptosis or poor eyelid closure, the cornea becomes dry in the middle of the night after prolonged exposure to the air and a sudden stinging pain may also be felt. In any case, it is still recommended to go to the hospital and combine my other symptoms and relevant tests to clearly diagnose the cause of the condition.