Recent research suggests that exposure to blue light before bedtime can distort your natural (circadian) rhythm and cause inability to fall asleep. The cause is the photoreceptor in his eyes, called melanopsin. This receptor is sensitive to a narrow band of blue light in the 460-480 nm range that can suppress the production of melatonin, a hormone responsible for your healthy sleep-wake cycles.

Supported Android
(4.1 and up)
Ice Cream Sandwich (4.0 – 4.0.4),Jelly Bean (4.1 – 4.3.1),KitKat (4.4 – 4.4.4),Lollipop (5.0 – 5.1.1),Marshmallow (6.0 – 6.0.1),Nougat (7.0 – 7.1.1),Oreo (8.0-8.1), Pie(9.0)

Download Twilight ? Blue light filter for better sleep 11.2 Pro APK

Twilight-Pro-v11.2_build_357.apk