We have a stairwell which goes from the first to third floor of the house, with a landing on the second floor. It's a straight shot all the way up, with the landing in the middle. There are switches at the top, bottom and on the landing, (there is a door to the second floor on the landing).
It's currently set up with two 3-way and a 4-way switch so you can turn the lights on and off from any of the switches. The problem is that these lights end up always being left on.
Any ideas on how to either replace one or all of the switches such that if the light is on for more than 10 minutes, it turns off?