The reason the appearance is a 4 is only because I expected them to be a flat, brushed cotton finish. The fabric has a sheen to it, although it isn't satin or gaudy. The Moss is different than the swatch looks on my computer, but still close. It is the sheen that gives it a different appearance, a little more olive in it than I expected - and a bit shinier. Like everyone has said, they do wrinkle in the dryer. However, I like the casual/loft look of a slightly wrinkled duvet.The fabric is thick, sturdy and soft. The button closures are close enough together that my comforter doesn't peek out. It was the perfect size for the comforter I bought (also on overstock), but I did compare the sizes listed before ordering.Excellent purchase!