Teens who stay up late: new therapy aims to reset body clocks
NCT ID NCT01828320
First seen Jun 26, 2026 · Last updated Jun 26, 2026
Summary
This study tested whether behavioral therapies could help teens who naturally go to bed late shift to earlier bedtimes. 176 teens with late sleep patterns were given either a combination of therapies (cognitive behavioral therapy, social rhythms therapy, and light therapy) or basic education about sleep. The goal was to see if earlier bedtimes could reduce risks in emotional, behavioral, social, physical, and school-related areas. The study is already completed, and results focus on changes in sleep timing and overall functioning.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- Cognitive Behavior Therapy for Insomnia, Interpersonal and Social Rhythms Therapy, Chronotherapy, and Psychoeducation
- What this could lead to
- If successful, these therapies could offer a practical way to help teens shift to earlier bedtimes, potentially improving mood, school focus, and overall health.
- What could go wrong
- This is a small, completed study with no long-term follow-up, so lasting benefits are uncertain. Results may not apply to all teens, and behavioral changes can be hard to maintain.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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University of California, Berkeley
Berkeley, California, 94720, United States