I was told once that commercial grade windows (and frames) do a lot to keep road noise out. Bloke next door to me bought a lot 2nd hand recently quite cheaply from a demolition yard. You could try replacing just the windows in direct line of sight with the noise source?
Radio? I find that 2GB going at night helps to keep me asleep, and if I'm not then at least I have something to listen to. Try a "talk-back" station. The trick is to have a fairly constant noise (talking) as any variation in pitch such as music or loud ads will tend to wake you.
prozac
