Does the color temperature of a computer screen affect sleep patterns?

It's not controversial at all, you're right. For example, here's a result that electronic devices at night drastically decrease melatonin secretion that I found for my article: http://www.gwern.net/Melatonin#fn12

I've been using F.lux for a few months, but had "solved" my sleep problems prior. The secret was to ensure my computer was off 2 hours before my intended sleep time. Interestingly I could sit in from of a 55" LCD television for that time period instead (with the brightness dimmed a bit.) Within two hours I would go to bed and be asleep within 15-20 minutes.

As a self employed entrepreneur since I dropped out of college some 5 years ago or so, I had immense difficulty with my sleep patterns until late last year. 24 hour cycles, waking up at midnight, every possible worst combination imaginable.

Based on my own personal experience over the years I suspect light intensity and prepping for bed time fixes 90% of the problems -- assuming you are not a user of any type of narcotics or stimulants, prescription or otherwise.

To a lesser degree changing my diet and pulling out all added sugar at 95% of dairy probably contributed positively as well.

Wow, this is crazy, I just installed F.lux, it dropped down to night-time settings, and I immediately felt my eyelids dropping.

I really needed this when I was a teenager.

F.lux didn't work for me too. I was using it for several weeks without any effect on my sleeping cycle.

It changes screen to screen. on my macbook pro screen f.lux produces some mellow golden (?) tint to the screen and basically unnoticeable, but I have a cheap samsung 21 monitor, and on that f.lux makes screen quality deteirorate noticeably.

Think of it like that: your lcd is certified to have a certain color gamut at 6800 kelvins. (daylight) But when you push it down to 3000K, there is no guarantee that your lcd will retain same color range - and in most cases it doesn't. That's probably why its about quality of your lcd. Most budget laptops has pretty bad lcd's, so it makes sense that your laptop doesn't fare as well.

f.lux doesn't work with 2 monitors; does redshift?