SmartSleep (智•好瞓)
Participant app for a 6,000-adolescent CUHK Theme-based Research Scheme cohort on sleep and mental health
CUHK Department of Psychiatry, Li Chiu Kong Family Sleep Assessment Unit · 2026
App Store · Google Play · Project website
The project
智•好瞓 Smart Sleep is a large-scale research program funded by the Research Grants Council’s Theme-based Research Scheme (TRS). It studies how sleep and circadian rhythms shape adolescents’ mental and emotional development, with three aims:
- Mechanisms — untangle the pathways linking sleep and mental health
- Early warning — build AI models that predict sleep and mental-health risks from multimodal everyday data
- Precision intervention — deliver personalized, AI-assisted sleep and circadian interventions that can be deployed in schools
The study follows a cohort of 6,000 adolescents across 63 secondary schools in Hong Kong.
The app
SmartSleep is how participants take part day to day: it collects the daily sleep, mood, and questionnaire data that feed into the project. As a research assistant on the project, I develop the app and the internal content-management system (CMS) the research team uses to manage participants, questionnaires, and study schedules.
- Daily sleep diaries and mood diaries, including audio and video entries
- Questionnaires and self-assessments organized by study phase, with version matching
- Scheduled reminders that keep participants on track with research tasks
- Offline drafts that sync automatically once the network is back