Many people have developed a habit of sleeping morning and afternoon.That is snap.I am used to having a snap from one pm.On average I have 50-minute-sleep.What's more,I usually snap in my dormitory with my room-mates.It's so interesting to hear their sound of snoring if I sleep later than them.We all believe that snap is good for our health as well as for our study.Because we can regain our energy after a snap.So I propose that all the students have a snap.