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wellnessemerging evidence

Red Light Therapy for Sleep Quality & Circadian Health

Published: Last updated:

Poor sleep quality and circadian disruption affect millions due to artificial light exposure, shift work, jet lag, and stress. Blue light from screens suppresses melatonin production, while red light does not.

Prevalence: 30-35% of adults report short sleep duration; insomnia affects 10-30%

How Red Light Therapy Helps

Red light does not suppress melatonin and may actively support its production. Evening red light exposure creates a circadian-friendly environment and preliminary research shows improved sleep quality scores.

Recommended Wavelengths

630nm
Red
660nm
Red

Treatment Protocols

Recommended Devices

Device-Specific Treatment Guides

Body Zones

Research Basis

This content is informed by 47+ published peer-reviewed studies on photobiomodulation.