This is a setup to make it so you can turn the lights on and off, without getting out of bed.
To set up: Slide the light switch mount over your light switch. If it does not stick, either glue it, or there are holes provided to screw it on.
Plan a route for the strings to follow, and mark it in pencil. An example is shown above. The double brackets are used after joining the two cords. The single are used to manuvere the strings to either side of the switch. Thread the strings through, and then attach the pulls.