Now,moreandmorestudentscan'thaveenoughsleep.Weallkonwthatitwilldogreatharmtoourlifeifwedon'thaveenoughsleep.Thefollowingistheharms.Firstly,itwillaffectourstudy.Wemayfeelsleepyandcan'tlistentotheteachercarefullyduringtheclasses.Secondly,itwillhavebadeffectsonourhealth.Wemayhaveabadheadacheanddon'twanttoeatanything.Buthowcanweimproveoursleep.Herearemyadvice.Aboveall,youcandosomesportsduringthedaytimesuchas:running,jogging,paylingbasketballandsoon.Itwillimproveyoursleepingquailty.What'smore,you'dbetterhaveanoonnap.Withsleepingatnoon,youmindwillbeclearer.Lastbutnottheleast,whenyouarereadytosleep,putallthetroublesawayyourmind.Itwillhelpyouhaveagoodsleep.March21stistheWorldSleepingDay.Itmeansthesleepingproblemshavecausedworldwideattention.So,justhaveagoodsleepforyourfuture.Hopemywordscanhelpyou.