How to reduce outside noise - Cork?
My master bedroom faces the street, and noise is an issue sometimes.
I believe that there is some "insulation" in the outside wall.
What is the best way to reduce noise from the outside?
Can I buy cork to line the wall (inside the bedroom)? I do not care about appearances at this point.
The window is already sealed.
I already have a white noise machine, but my hearing is too darn good. I hear everything...and that makes it hard to fall asleep.