I live in an apartment with a patio door that is single pane and faces the parking lot, so I get ALOT of noise from cars playing loud bass music, and also from the freeway nearby. The bass would actually make my ears hurt coming through the door. Now, with these curtains, I can still hear the bass, but it is so muffled that I can easily tune it out and no longer have that issue with my ears hurting from the bass. I also can barely hear any noise from the freeway anymore. They are very heavy and well made, but I definitely need to steam out all the wrinkles. These curtains have made it possible to live comfortably in my apartment until I can GTFO.