Are you having trouble falling asleep? Your kids are hyperactive when they play with the tablet before going to sleep. Do you use your smartphone or tablet late in the evening? Twilight could be a solution for you! Recent research suggests that exposure to blue light before bed can distort your natural (circadian) rhythm and cause you to be unable to fall asleep. The cause is the photoreceptor in your eye, called melanopsin. This receptor is sensitive to a narrow band of blue light in the 460-480nm range which can suppress the production of melatonin, a hormone responsible for your healthy sleep-wake cycles.
In experimental scientific studies it has been shown that the average person who reads on a tablet or smartphone for a couple of hours before bed can experience a sleep delay of about an hour. See the references below .. The Twilight app makes your device screen adapt to the time of day. Filters the stream of blue light emitted by your phone or tablet after dark and protects your eyes with a soft and pleasant red filter. The intensity of the filter is smoothly adjusted according to the cycle of the sun based on the local time of sunset and sunrise.
* location to find out your current sunset / surise times
* running apps to stop Twilight in selected apps
* write settings to set the backlight
* Network access smartlight (Philips HUE) to protect your home’s light from blue
Supported Android Devices :- [4.1–4.3.1] Jelly Bean – [4.4–4.4.4] KitKat – [5.0–5.0.2] Lollipop – [6.0 – 6.0.1] Marshmallow – [7.0 – 7.1.1] Nougat – [8.0-8.1] Oreo –  Pie – Android 10 – Android 11