单选题：When do you usually go to bed?
Before 10 pm
Between 10 and 11 pm
Between 11 and 12 pm
Between 0 and 1 am
After 1 am
单选题 : How long do you usually sleep at night?
Less than 6 hours
About 6 hours
About 7 hours
About 8 hours
About 9 hours
More than 9 hours
单选题：What do you feel when you get up in the morning？
Energetic
Not bad
Tired
Exhausted