When she opened this duvet on her birthday morning, she actually cleaned her room - really well - while I made the pillow cases and the cover for her window seat cushion. She wanted everything just right for her birthday party. Her room was not dark before, but I am amazed at how this fabric brought a whole new level of light into it. The back side of the duvet is flannel and the pillow cases are flannel too, except the trim. I will post more after I finish the curtains and the big pillow (not pictured.) Need more fabric...I can't believe I just said that.