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Interaction of Person-Affect-Cognition-Execution-Based Digital Interventions for Sleep Procrastination in Chinese
Huihui Xu1, Liao Zhang2, Xinyi Lai3
1Department of Clinical Psychology, Wenzhou Medical University Wenzhou Seventh People's Hospital, Wenzhou, Zhejiang, China.
JMIR Formative Research
|July 28, 2026
Summary
This pilot study explored an app-based intervention for sleep procrastination in university students. While subjective improvements were similar across groups, the online intervention showed promising objective sleep timing changes.
Area of Science:
- Behavioral Science
- Sleep Medicine
- Digital Health
Background:
- Sleep procrastination is common and harmful among university students.
- Existing digital interventions often lack theoretical grounding and clinical differentiation.
Purpose of the Study:
- To assess the feasibility and preliminary effects of a novel intervention for sleep procrastination.
- The intervention is based on the Interaction of Person-Affect-Cognition-Execution (I-PACE) model.
- Compare online, offline, and control delivery methods for the intervention.
Main Methods:
- A pilot study involving 46 students with high sleep procrastination.
- Participants were randomized into online (n=16), offline (n=16), or control (n=14) groups.
- An 8-week intervention targeting I-PACE components, with subjective and objective (wearable) measures collected.
Main Results:
- Subjective sleep procrastination improved similarly across all groups.
- Objective sleep procrastination showed a significant group-by-time interaction (P=.03).
- The online group exhibited numerically earlier sleep onset, though not statistically significant compared to other groups.
Conclusions:
- An app-based, I-PACE-grounded intervention shows potential for influencing objective sleep timing.
- Further research with larger sample sizes and mediation analysis is required.
- Subjective improvements were comparable across online, offline, and control conditions.