[unquietcode]

The iPhone already supports various 'filters' through its Accessibility settings. I use the 'Low Light' filter every night, which allows the screen to go darker than usual. If they were to just add a low-light redshifted filter, that would be fine for most people I think.

However, and to f.lux's point, people should expect their devices will keep their health in mind. I believe Apple is worried that opening up first class support for this sort of functionality is an admission that blue light is hazardous to one's sleep health, which could open them up to various liabilities.

[tptacek]

That's extremely silly, since practically every screen in the world has the same blue-light issue. Apple will never be held liable for people's inability to sleep after overexposing themselves to bright blue light, any more than flourescent light bulb manufacturers will.

[ecksor]

There's also a way to shortcut this low light mode (triple click Home): https://www.reddit.com/r/LifeProTips/comments/2ros9k/lpt_nig...