Let me get a picture of the walls... Sometimes the diamonds and stripes don't really photograph well. I think its a bit more muted in real life.
It's sort of like a slipcover that goes over a comforter like filler. I have never had or used one either. But I was reading that most comforters will fit inside a duvet cover. Since her's is so cozy as is I was thinking it would be nice to keep using it.What is a duvet cover? I don't even know what a duvet is. We just have a blanket, then bedspread/comforter over that.