Section 1

Sleep Behavior

1. What time do you usually go to bed on weekdays?
2. What time do you usually go to bed on weekends?
3. How many hours of sleep do you usually get on weekdays?
4. How long does it usually take you to fall asleep?
5. How often do you go to bed later than you originally planned?

Section 2

Activities Before Sleep

6. What do you usually do within 1 hour before going to bed? (Multiple choice)
7. How much time do you spend on electronic devices before sleep?

Section 3

Daily Experience

Likert scale: Strongly disagree → Strongly agree

8. I feel busy during the day.

9. I experience a high level of stress in my daily life.

10. I have enough personal time during the day.

11. I feel in control of my daily schedule.

12. I am satisfied with my work-life balance.

Section 4

Nighttime Motivation

Likert scale: Strongly disagree → Strongly agree

13. I stay up late because of stress or emotional reasons.

14. I stay up late because of social interactions (e.g., chatting, gaming).

15. I stay up late due to academic or work demands.

16. I lose track of time when using digital devices at night.

Section 5

Outcomes

17. How often do you feel tired the next day?
18. What effects do you experience the next day due to lack of sleep?
19. How would you rate your overall sleep quality?

20. My sleep affects my mood or productivity.

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Results

Survey Results

After submission, this area shows the three index scores, RBPI total, and a short summary.

RBPI Score --
Waiting

Result Level

Waiting for Results

After submission, this section will show your low, moderate, or high RBPI level and the matching score range.

RBPI Ranges

1.0 - 2.5 Low

2.5 - 3.5 Moderate

3.5 - 5.0 High

Sleep Delay --
Daytime Deficit --
Nighttime Motivation --

Interpretation

Complete the questionnaire and click Calculate RBPI to see your results.

Section 2 Snapshot

Your pre-sleep activity summary will appear here.

Outcome Snapshot

Next-day fatigue, effects, sleep quality, and perceived impact will appear here.

Interpretation & Tips

Interpretation and Improvement Tips

After submission, this area will show score interpretation, practical guidance, and a set of actionable suggestions.

What This Means

RBPI reflects how strongly someone tends to delay sleep at night to compensate for unmet needs during the day.

Why It Happens

Common drivers include daytime busyness, stress, not having enough personal time, and difficulty stopping device use at night.

Important Note

This result is useful for self-reflection and research, but it is not a medical diagnosis.

Priority Focus

The system will highlight the area that appears most important to address first.

Waiting for results

Sleep Protection

Start with a realistic bedtime, then begin slowing down 30 to 45 minutes earlier instead of waiting until you are exhausted.

Daytime Recovery

If you have almost no personal time during the day, it becomes easier to develop a compensation mindset at night, so small controllable breaks during the day matter.

Digital Boundaries

Setting a clear ending point for phone use, videos, or gaming is usually more effective than simply telling yourself to use them a little less.

Stress Regulation

If staying up late is driven more by stress or emotion, turn the final 15 minutes before bed into low-stimulation relaxation instead of more input.

Workload Adjustment

If school or work often pushes into the evening, reduce the frequency of continuing tasks right before sleep instead of relying only on willpower.

When to Seek Help

If this pattern keeps affecting mood, concentration, or daytime functioning and becomes difficult to adjust on your own, professional support may help.