___________________________________________________________________________________EDIT: I got another set, the 45, to put UNDER the 54 inch. As light could come under the 54, the 45 inch were perfect to put right next to the window to block light (just touched the windowsill on inside of window), then had the 54 on the outside. My room is darker than a movie theatre! Helps my dog sleep longer :-) as he wants to get up at first light, which helps ME sleep longer. PLUS with both curtains, big difference in noise and keeping in heat or cold.Even getting BOTH they were under $40 total and what price can you put on sleep and saving on electric or gas bills!_____________________________________EDIT: OK as I got these to block out the BRIGHT light shining in my window at night, I closed my door and it was PITCH BLACK....WITH a street light and an outside light outside my bedroom on. SO SUCCESS at what I needed them for.As my window faces west, yes, a few hours a day, not total black out, but still close and WELL worth the money and then some!________________________________________________________________________________I actually got these on Prime Day. They were 14.39 TOTAL with my free Prime shipping!First, a little background. There is a street light RIGHT outside my apt. I prefer just having blinds, but even with the blinds closed, it's like a night light...all night. NOT sleeping well (just moved in and right away started looking for black out curtains!).I got the 54 inch long ones and if I had gotten the longer ones, it would likely be totally black out, but as it is, DARK ENOUGH FOR ME! It went from BRIGHT, to more cave-like!I was going to toss them on low in the dryer to remove any wrinkles, but the way they were folded, looked like just a crease and they look fine to me. Had them up on a cheapie curtain rod in about two mins.LOVELY SLIGHT SHEEN to them! They look much more expensive (I would have paid 70 for them, well-sewn) and VERY nice shade of medium gray that goes GREAT with my bedroom (done in white, gray, black with some cobalt blue accents).There are a few hours of the day a bit more light comes in. IF YOU REALLY want black out, at this price, I would say get two sets, total of four panels, and just DOUBLE THEM as in back to back. Tonight will be my first night trying them with the street light and if not quite dark enough, I would think of getting another set to do that.I WOULD DEFINITELY SAY …..TAKE A CHANCE. ONE OF THE BEST DEALS I HAVE EVER GOTTEN ON AMAZON and I have been an Amazonian for 14 years!