In this project, I designed a nightlight that automatically dims and turns itself off. A lot of people find it difficult to fall asleep when they suddenly transition from a brightly lit room to complete darkness. A dim source of light such as a nightlight helps them to adjust to a lower brightness and fall asleep more easily. But the down side of most nightlights is that they waste electricity because they are on all night when you really only need them to be on while you are falling asleep. So I designed a nightlight that will automatically dim and turn itself off after a certain period of time that is set by the user.
For step by step instructions check out my Instructables page: http://www.instructables.com/id/Automatic-Dimming-Nightlight/