Twilight: Blue light filter for better sleep [v12.9] APK Mod for Android

Publisher
Genre
Size 6.3M
Version 12.6
Get it On Google Play
Update August 5th, 2021
Download FAST/SAFE

Download [12.6] Twilight: Blue light filter for better sleep (com.urbandroid.lux) is the Health & Fitness for android device which developed by Urbandroid (Petr Nálevka). Twilight: Blue light filter for better sleep has 10,000,000+ installs on Google Play, its latest version is 12.6 updated on August 4, 2021 requires Android 4.1 and up

- Android 12 compatibility

Descriptions :

The Twilight app adapts your device’s screen to the time of day. It filters the blue luminous flux of your phone or tablet after sunset and protects your eyes with a soft and pleasant red filter. The filter intensity is continuously adjusted to the solar cycle based on your local sunset and sunrise times.

Required Android Versions :

 Jelly Bean [4.1–4.3.1] – KitKat [4.4–4.4.4] – Lollipop [5.0–5.0.2] – Marshmallow [6.0 – 6.0.1] – Nougat [7.0 – 7.1.1] – Oreo [8.0-8.1]Download Twilight Blue light filter for better sleep v12.9 Pro APK Free

Introduce Twilight: Blue light filter for better sleep

Are you having trouble falling asleep? Are your kids hyperactive when playing with the tablet before bed time?

Twilight: Blue light filter for better sleep

Are you using your smart phone or tablet in the late evening? Twilight may be a solution for you!

Recent research suggests that exposure to blue light before sleep may distort your natural (circadian) rhythm and cause inability to fall asleep.

The cause is the photoreceptor in your eyes, called Melanopsin. This receptor is sensitive to a narrow band of blue light in the 460-480nm range which may suppress Melatonin production – a hormone responsible for your healthy sleep-wake cycles.

In experimental scientific studies it has been shown an average person reading on a tablet or smart phone for a couple of hours before bed time may find their sleep delayed by about an hour. See references below..

The Twilight app makes your device screen adapt to the time of the day. It filters the flux of blue light emitted by your phone or tablet after sunset and protects your eyes with a soft and pleasant red filter. The filter intensity is smoothly adjusted to the sun cycle based on your local sunset and sunrise times.

Documentation
http://twilight.urbandroid.org/doc/

Get more from Twilight

Twilight: Blue light filter for better sleep

1) Bed reading: Twilight is more pleasant on the eyes for night reading. Especially as it is able to lower the screen backlight far below the ability of the backligt controls on your screen

2) AMOLED screens: We have tested Twilight on an AMOLED screen for 5 years without any sign of depletion or over-burning. If properly configured Twilight causes less light emission (by enabling dimming) with more equal light distribution (dark areas of the screen such as the status bar get tinted). This may in fact increase your AMOLED screen life time.

Basics on circadian rhythm and the role of melatonin
http://en.wikipedia.org/wiki/Melatonin
http://en.wikipedia.org/wiki/Melanopsin
http://en.wikipedia.org/wiki/Circadian_rhythms
http://en.wikipedia.org/wiki/Circadian_rhythm_disorder

Permissions
– location – to find out your current sunset/surise times
– running apps – to stop Twilight in selected apps
– write settings – to set back-light

Twilight: Blue light filter for better sleep

– network – access smartlight (Philips HUE) to shield you household light from blue

Automation (Tasker or other)
https://sites.google.com/site/twilight4android/automation

Related scientific research

Amplitude Reduction and Phase Shifts of Melatonin, Cortisol and Other Circadian Rhythms after a Gradual Advance of Sleep and Light Exposure in Humans Derk-Jan Dijk, & Co 2012

Exposure to Room Light before Bedtime Suppresses Melatonin Onset and Shortens Melatonin Duration in Humans Joshua J. Gooley, Kyle Chamberlain, Kurt A. Smith & Co, 2011

Effect of Light on Human Circadian Physiology Jeanne F. Duffy, Charles A. Czeisler 2009

Efficacy of a single sequence of intermittent bright light pulses for delaying circadian phase in humans Claude Gronfier, Kenneth P. Wright, & Co 2009

Twilight: Blue light filter for better sleep

Intrinsic period and light intensity determine the phase relationship between melatonin and sleep in humans Kenneth P. Wright, Claude Gronfier & Co 2009

The Impact of Sleep Timing and Bright Light Exposure on Attentional Impairment during Night Work Nayantara Santhi & Co 2008

Short-Wavelength Light Sensitivity of Circadian, Pupillary, and Visual Awareness in Humans Lacking an Outer Retina Farhan H. Zaidi & Co, 2007

High sensitivity of the human circadian melatonin rhythm to resetting by short wavelength light. Lockley SW & Co. 2003

Sensitivity of the human circadian pacemaker to nocturnal light: Jamie M Zeitzer, Derk-Jan Dijk & Co 2000

Whats new of Twilight: Blue light filter for better sleep [12.9]

+ Android 12 compatibility
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Download Twilight: Blue light filter for better sleep [v12.9] APK Mod for Android

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