Can't sleep? Blame all those glowing gadgets
Twinkle, twinkle, little Internet router. And cell phone. And digital video recorder. And cable modem. And game console. And power strip. And TV — even though it's turned off.
Turn off the lamps in a living room or bedroom today, and chances are good the room will still be aglow with the tiny diode lights of a half-dozen gadgets.
They can be useful indicators of what state a gadget it is in, or where it is, but they also annoy people who'd rather not have lights shining in their faces when they're trying to sleep or watch movies.
