I purchased two panels in the color Coal for my bedroom. It is true to the description it does block out all light. Some light does peak through on top of the curtain but only due to the curtain rod I used. I am fully happy with my purchase and strongly recommend to anyone that is considering getting these curtains. You will not be disappointed. I also purchased two panels in the color Stone for my living room and one for my dining room. It makes a huge difference and block out all the sunlight.