2.Have ever you experienced sleep problem ?
3.How many sleep hours do you usually get?
more than 8 hours
7-8 hours
6-7 hours
5-6 hours
less than 5 hours
4.Do you satisfy with your sleep quality?
strongly satisfied
satisfied
feel nothing for it
not satisfied
strongly not satisfied
5.How many sleep hours do you think will be enough to provide energy for the whole day?
more than 8 hours
7-8 hours
6-7 hours
5-6 hours
less than 5 hours
6.Do you have regular bedtime schedule?
7.When do you usually go to bed?
7.What’s the main factors that lead to your irregular bedtime?(multiple )
heavy school work
too much daytime sleep
irregular school timetable( school timetable differs everyday)
electronic games（computer、iPad）
social networking(wechat Facebook weibo etc.)
E-books reading
others
8.Do you do any sports besides P.E lesson?
9.Do you agree that you will have a better sleep quality after sports in day time?
strongly agree
agree
neither agree nor disagree
disagree
strongly disagree
10.Do you think that you have Wechat(Facebook or Weibo) dependence?(Can’t help to check it frequently or whenever you have time)（5 stands for strongly dependent and 1 stands for not dependent at all)
11.Do you use your phone after 23:00?
What do you use it for?( Multiple choice)
Wechat/Weibo ect.
Learining
Reading News
make phone call
Phone games
E-books reading
12.Which is your main factor that lead to a poor sleep quality(late bedtime)?
Great pressure from study
Great pressure from social life（school community, relationship )
Physical reason
Different bedtime schedule with your roommates(noise from the stay-up persons )
Indulge in computer games
Busy social networking (wechat, Weibo or others)
others
13.Do you feel sleepy when attending morning classes?(5 stands for always and 1 stands for never)
14.Do you feel it hard to concentrate in class if you don’t sleep well last night?(5 stands for strongly agree and 1 stands for strongly disagree)
15.Do you believe that a good sleep will help you improve your study efficiency?
strongly agree
agree
neither agree nor disagree
disagree
strongly disagree
16.Will you willing to make some effort to improve your sleep quality?
Which way will be most effective to improve your sleep quality?
stay away from social networking after 11p.m
stop playing computer games after 11p.m
plan a bedtime schedule with my roommates
medication
do some sports in the day time
others