I don't understand, though. I'm a very, very light sleeper (I wake up right before someone gets to the front door of my house nearly every time), and i have to have sound when i sleep. Any sound, just SOME kind, and preferrably, multiple sources for said sounds. Like i usually have music, and the fan, and my computer humming lightly. With the computer off my room seems kind of eerie now.
I think you no-noisers are all just freaks.