上降气通大学 SHANGHAI JIAO TONG UNIVERSIT ACIE Group 7 As for the grades of the participants,which is shown in Fig.3,half of the participants are freshmen,more than one third of the participants are sophomores,the rest are senior,junior,master and doctor.The main purpose of the research is to investigate the unique sleep patterns of college students.For freshmen and sophomores,they are more likely to have problems in sleep because they just started their college life for a relatively short time,which is of benefit to our research. 大一，50% 博士，0% 研究，2.27% 大四，2.27% 大三，9.09% 大二，36.36% Fig.3 The pie graph for the grade of participants As for the participants in hands-on experiments,the persistent stay-up records come from the participant Sun(male,19),who recorded his experience and feeling of persistent stay-up during exam period (Jan/2016),together with cell phone playing and milk drinking test from 4.1 to 4.10.The participant Hu(female,19)conducted keeping early hours test and nap test from 3.28 to 4.10.The participant Ding(male,20) operated exercising test from 3.28 to 4.10. 3.3.Instrument Questionnaires Questionnaires are designed to explore the sleep patterns of college students quantitatively,the first two questions are aiming at figuring out the basic information of participants,question 3~7 are used to figure out the different sleep habits in weekdays and weekends,question 8~10 are designed to make clear the sleep patterns related to biorhythm,question 11 is employed to figure out sleep habits of participants,whereas question 12~15 are used to investigate the potential sleep problems and solutions. Experiments related to biorhythm Experiments related to biorhythm includes persistent stay-up test, keeping early hours test and nap test.The aim of persistent stay-up test is to make sure if it is available for students to stay-up during busy time and -8-ACIE Group 7 - 8 - As for the grades of the participants , which is shown in Fig.3, half of the participants are freshmen, more than one third of the participants are sophomores, the rest are senior, junior, master and doctor. The main purpose of the research is to investigate the unique sleep patterns of college students. For freshmen and sophomores, they are more likely to have problems in sleep because they just started their college life for a relatively short time, which is of benefit to our research. Fig.3 The pie graph for the grade of participants As for the participants in hands-on experiments, the persistent stay-up records come from the participant Sun(male, 19) ,who recorded his experience and feeling of persistent stay-up during exam period (Jan/2016)，together with cell phone playing and milk drinking test from 4.1 to 4.10. The participant Hu (female, 19) conducted keeping early hours test and nap test from 3.28 to 4.10. The participant Ding(male, 20) operated exercising test from 3.28 to 4.10. 3.3. Instrument Questionnaires Questionnaires are designed to explore the sleep patterns of college students quantitatively,the first two questions are aiming at figuring out the basic information of participants, question 3~7 are used to figure out the different sleep habits in weekdays and weekends, question 8~10 are designed to make clear the sleep patterns related to biorhythm, question 11 is employed to figure out sleep habits of participants, whereas question 12~15 are used to investigate the potential sleep problems and solutions. Experiments related to biorhythm Experiments related to biorhythm includes persistent stay-up test, keeping early hours test and nap test. The aim of persistent stay-up test is to make sure if it is available for students to stay-up during busy time and