if you are like most and use your computer at night, i’m sure you are familiar with the eye strain caused by the screen light, and also with not being able to shut down, both your computer and your brain for sleep.
you need to make yourself a favor by giving redshift a go. the idea behind it is simple; when the sun is down you shouldn’t be staring at an immensely bright computer screen that is made to mimic sunlight. instead, your display’s lighting should become warmer and softer, mimicking the lighting in your room.
this does not also prevent the eye strain of constantly looking at the brightest source in your surroundings, it also improves your sleep. having a high color temperature (aka blue light) tricks your brain into thinking it’s still daylight, which makes it delay sleepiness and tiredness. this theory has been backed up by multiple studies, that showed that those subjected to lower color temperatures before sleeping in an equally lit room, had better stage 4 sleep than those subjected to higher temperature colors. simply put, cooler colors with a lower kalvin rating, means better stage 4 sleep, which means, better quality sleep!
“the popular treatments for sleep disorders today focus a lot on “blue light in the morning”, and the consensus view seems to include avoiding blue light within two hours of sleep.“
redshift handles this for you. from their website: “it adjusts the color temperature according to the position of the sun relative to your location. during twilight and early morning, the color temperature transitions smoothly from night to daytime temperature to allow your eyes to slowly adapt. at night the color temperature should be set to match the lamps in your room. this is typically a low temperature at around 3000K-4000 kalvin (default is 3700). during the day, the color temperature should match the light from outside, typically around 5500k-6500k.”