These are very soft and flowy, and packaging wrinkles came out easily with a steamer. I hung them with rings to make them easier to open. "Room darkening" is a stretch...I would consider these regular curtains and would not rely on them to help you sleep during the day. But for my needs in the living room, they are nice. I hung them 4 panels wide, and when closed, my wall looks like a mural :) Overall, I'm happy with them.