Twilight: Reduce Blue Light, Improve Sleep

Struggling to fall asleep? Are your children overly active after tablet use before bed? Do you frequently use your phone or tablet late at night, or experience light sensitivity during migraines? Twilight might be the answer.

Emerging research highlights the disruptive effect of blue light exposure before sleep on our natural circadian rhythm, hindering sleep. This is due to Melanopsin, a photoreceptor in the eye sensitive to blue light (460-480nm), which can suppress melatonin production – crucial for healthy sleep cycles. Studies show that even a couple of hours of tablet or smartphone use before bed can delay sleep by an hour.

Twilight dynamically adjusts your device's screen to the time of day. After sunset, it filters blue light, replacing it with a softer red filter. The filter intensity adapts to your local sunrise and sunset times. Twilight is also compatible with Wear OS devices.

Key Benefits & Features:

• Improved Sleep: Reduces blue light exposure for better sleep quality.
• Reduced Eye Strain: Provides a more comfortable viewing experience, especially at night.
• Wear OS Compatibility: Syncs with your Wear OS device for consistent filtering.
• AMOLED Optimization: Tested for 5 years on AMOLED screens without burn-in; may even extend screen lifespan.
• Customizable Settings: Allows for precise control over filter intensity and application.
• App Control: Option to disable Twilight in specific apps.
• Smart Home Integration: Integrates with Philips Hue smart lights to control household lighting.

Learn More:

• Documentation: http://twilight.urbandroid.org/doc/
• Automation (Tasker, etc.): https://sites.google.com/site/twilight4android/automation
• Privacy Information Regarding Accessibility Service: https://twilight.urbandroid.org/is-twilights-accessibility-service-a-thread-to-my-privacy/

Supporting Research: (A selection of the studies mentioned in the original text)

• Dijk, D. J., et al. (2012). Amplitude Reduction and Phase Shifts of Melatonin, Cortisol and Other Circadian Rhythms after a Gradual Advance of Sleep and Light Exposure in Humans.
• Gooley, J. J., et al. (2011). Exposure to Room Light before Bedtime Suppresses Melatonin Onset and Shortens Melatonin Duration in Humans.
• Duffy, J. F., & Czeisler, C. A. (2009). Effect of Light on Human Circadian Physiology.

Download Twilight today and experience the difference!