So interestingly enough, wearing the orange goggles or using the rubylith on a device that lights itself can get less blue light into your eyes than reading a book with a lamp on next to you (or of course, wear the goggles with a lamp on works too). Could be a further way to fall asleep faster. I've been fascinated by this phenomenon for a while - the theory I've heard is that humans evolved during a time when the sun was the only source of light besides maybe fire, and so darkness or light the color of fire signaled the time for being sleepy. When you get the blue colored light into your eyes at night the brain gets confused and doesn't know what time it is.