For those of you who have some difficulty sleeping after working well into the evening on your computer, you might like to check out this site:
This tool adapts your computer screen to the varying times of the day so that it dims in the evening, for example. I’ve been using it for a few days and have found it quite beneficial.
There are plenty of comments on the site that you can review and also many Twitter posts.
Check it out and let me know what you think!