Morning blue, evening red: a simple light trick for better sleep?
NCT ID NCT07465250
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tested whether a combination of morning blue light and evening red light therapy could improve sleep in 20 adults with mild sleep complaints. Participants wore a wrist device to track sleep during a normal week and then during a week of light therapy. The goal was to see if this light routine helps people fall asleep faster and feel more awake in the morning.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
light therapy (morning blue light and evening red light)
What this could lead to
If it works, this could offer a simple, drug-free way to help people with mild sleep problems fall asleep faster and feel more alert during the day.
What could go wrong
This is a very small, early study with only 20 people, so results may not apply to everyone. It also only looks at short-term effects, not long-term sleep improvement.
Disclaimer
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the original study
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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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
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Locations
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Colorado State University
Fort Collins, Colorado, 80523, United States