Table 3.

Sleep knowledge and checklist of sleep-promoting behaviors for junior high school students

Sleep knowledge for junior high school students
Sleep knowledge quiz	Response	Correct answer
Q1. Is the grade of obesity associated with sleep length?	( )	○
Q2. Is the cycle length of human body rhythm not just 24 hours?	( )	○
Q3. When you wake-up in the morning, is it better to keep the curtain closed?	( )	×
Q4. If you get sleepy just after coming back home, is it better to take a nap?	( )	×
Q5. When you feel having insufficient sleep, is it better to oversleep until afternoon on weekends?	( )	×
Q6. Does body temperature rise during nocturnal sleep time?	( )	×
Q7. Does use of a mobile phone in the bedroom bring good sleep?	( )	×
Q8. Does a tepid bath bring good sleep?	( )	○
Q9. If you have difficulty falling asleep at night, is it better to keep lying on bed until you fall asleep?	( )	×
Q10. Is it better to refrain from going to brightly lit places, such as a convenience store, just before sleep time?	( )	○

Checklist of sleep-promoting behaviors for junior high school students
Sleep-promoting behaviors	Self-assessment
1. Getting up at almost fixed time every morning	○	△	×
2. Exposing oneself to sunlight in the morning	○	△	×
3. Having breakfast every morning	○	△	×
4. Not taking a nap just after coming back home	○	△	×
5. Avoiding caffeinated drinks, such as tea or coffee, after dinner	○	△	×
6. Avoiding snacks late in the evening	○	△	×
7. Taking a tepid bath relaxedly 2 hrs before bedtime	○	△	×
8. Going to bed by 12:00 am at the least every night	○	△	×
9. Trying to rest the brain and mind before sleep	○	△	×
10. Keeping the difference of wake-up time of weekdays and holiday within 2 hour	○	△	×

○ practice, × do not practice, and △ but can practice