Wearing an eye mask to sleep has certain benefits: 1, can create a dark environment at night, can promote the secretion of melatonin, conducive to better rest and sleep. 2, if it is in a very light environment during the day, it is not easy to enter the best sleep, you can wear an eye mask during the day when you sleep, for sleep is very beneficial. 3, wearing an eye mask also helps insomnia, dreamy, neurasthenia, with 4, buy eye masks to loose, comfortable, avoid too tight on the eye tissue squeeze phenomenon, avoid eye masks too small, can not fully cover the whole eye and stimulated by light. 5, can choose to have a drug effect of the eye mask, such as cassia ingredients, beneficial to soothe the eye and head blood circulation. It can have a helpful effect on visual fatigue and migraine disease.