Eyelid swelling after a night’s sleep may be caused by staying up late, allergy, granuloma and other reasons. 1. Staying up late: If you stay up late for a long time, and have a short night’s sleep without sufficient rest, it may lead to the phenomenon of swollen eyelids after sleeping, and may be accompanied by hyperpigmentation around the eyes. 2. Allergy: If you come into contact with allergens, such as skin care products, pollen, bedding, mites, before or during sleep, causing local skin allergic reactions, you may experience eyelid swelling after sleeping. 3. Emphysema: If you don’t pay attention to eye hygiene habits, rubbing your eyes with dirty hands, etc., causing bacteria to invade the glands and lead to emphysema, it may also lead to eyelid swelling after a night’s sleep. You should avoid staying up all night and keep a regular schedule. The eyelids may also be swollen when you sleep, conjunctivitis, blepharitis and other causes, you should go to the regular hospital in a timely manner to clarify the cause of the disease, under the guidance of a professional doctor to carry out targeted treatment.