睡眠健康

How often over the past month have you found yourself feeling completely exhausted, needing sleep, yet scrolling through your phone or engaging in unrelated activities that delayed going to bed?

Never infrequently (1-2 days per week)sometimes (3-4 days per week)frequently (5-6 days per week)always (almost daily)

To what extent do you agree with this statement: I often can't help but continue doing other things after my planned bedtime.

Very DisagreeDisagreeNeutralAgreeStrongly Agree

On average, how much later than your planned bedtime do you actually go to bed?

Within 15 minutes16–30 minutes31–60 minutes1–2 hoursMore than 2 hours

What do you usually do during the time you "postpone going to bed"? (Multiple choices allowed):

Watching short videos or social mediaWatching shows or movies or animePlaying gamesEatingStudying or workingThinking about things or relaxingOthers: ______

Does sleep delay affect your daytime performance?

No impact at allMild impactModerate impactSignificant impactSevere impact

6. How often over the past month have you delayed going to bed because you felt that late night was the only time you could fully relax and do things just for yourself?

Never (0 days per week)Rarely (1-2 days per week)Occasionally (3-4 days per week)Often (5-6 days per week)Almost every night

To what extent do you agree with the statement: "I often feel a strong reluctance to end the day, even when I know I need to sleep."

Strongly DisagreeDisagreeNeutralAgreeStrongly Agree

How often have you made a conscious effort to go to bed on time, only to slip back into your bedtime delay routine within a few days?

Never (I have never tried to change)Rarely (1-2 times)Sometimes (3-5 times)Often (6-10 times)Very often (More than 10 times)

How often do you feel regretful, guilty, or frustrated with yourself after staying up late doing things that don’t feel important?

NeverRarelySometimesOftenAlmost every time I delay bedtime

10. How often do you rely on caffeine, energy drinks, or daytime naps to get through the day after a night of delayed sleep?

NeverRarelySometimesOftenEvery time I stay up late

11. What are the main reasons for your sleep procrastination? (e.g., academic pressure, electronic device use, social media, personal habit, etc.)

12. Have you ever tried to correct sleep procrastination? What methods have you used and what are the effects?

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睡眠健康