Flux
 

http://www.stereopsis.com/flux/

I've found this program to be very interesting and wanted to share. Basically at night time it will calibrate the color of the monitor to be more of a tungsten color simulating lightbulbs. Normally, the Kelvin value of the monitor is about what daylight is, and that may be causing late night computer users to not be able to sleep.

Anyone else using this program already?

MY EYES!!! D :

Well I gotta get use to it, feedback in one hour.

Saw this app on Lifehacker a few days ago.
It's quite the interesting app and I really like the effect.

I used it for a few days, but gave up on it because I had to restart the app a few times after the tinting was stuck. The tint gets stuck when I plugin or unplug an external monitor. I normally use the external as the primary monitor with my MacBook Pro closed.
Maybe that's the problem.

I did like the warm yellow tint so much that I ended up calibrating my monitor with the warmer D50 white point. I don't do any graphics design, so the yellow tint doesn't cause any issues for me.

i've been using this program for a couple of months now. eyes have gotten really used to it and when my gf or i turn it off, its almost blinding to our eyes. i definitely recommend it