Open pilot study of a guided digital self-help intervention targeting sleep and the biological clock in university students using a pre-test post-test design
Abstract Insomnia is common among university students and is associated with mental health problems. Students often have irregular day/night rhythms, which contribute to circadian rhythm disruptions. This open pilot study investigated the feasibility, acceptability, and preliminary effectiveness of...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2025-07-01
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| Series: | Scientific Reports |
| Subjects: | |
| Online Access: | https://doi.org/10.1038/s41598-025-04891-8 |
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| Summary: | Abstract Insomnia is common among university students and is associated with mental health problems. Students often have irregular day/night rhythms, which contribute to circadian rhythm disruptions. This open pilot study investigated the feasibility, acceptability, and preliminary effectiveness of a 5-week digital guided self-help intervention in university students with self-reported insomnia. The intervention is based on cognitive behavioural therapy for insomnia with specific emphasis on the biological clock (‘i-Sleep & BioClock’). We assessed feasibility and acceptability. Pre- to post-intervention (7-week) changes in insomnia, depression, anxiety, chronotype, and quality of life were evaluated. Of 101 included students, 81 accessed the platform, 41 initiated the intervention, and 13 completed the intervention. Post-test response was 39%. Students rated the intervention with good acceptability and the platform with excellent usability. Study completers (n = 39) showed large improvements in insomnia severity (p < 0.001, d = 1.04), and moderate improvements in depression (p < 0.001, d = 0.63), anxiety (p < 0.001, d = 0.35), and functioning (p < 0.001, d = 0.56). No significant changes were found in quality of life (p = 0.07, d = 0.19). To summarize, the intervention had low uptake but moderate adherence and fairly good acceptability along with important improvements in sleep, mental health, and functioning. Trial registration: ClinicalTrials.gov: NCT05363995. |
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| ISSN: | 2045-2322 |