Whenever children’s eyes itch before going to bed, it may be related to allergy, infection, eye fatigue and other factors. 1. Allergy: when a child comes into contact with allergy-prone substances such as dust mites on the quilt before going to bed, it can induce an allergic reaction in the eyes and cause itching. 2. Infection: children usually do not pay attention to personal hygiene, like to rub their eyes with their hands, which may lead to the infection of bacteria and other pathogenic microorganisms in the eyes, which in turn leads to eye itching. 3. Eye fatigue: many children have the habit of reading books or watching TV before going to bed. Prolonged eye use may lead to dry and itchy eyes. There may be other reasons why children’s eyes itch every time they go to bed. Parents are advised to take their children to the ophthalmology department of the hospital to clarify the cause.