I used blue flannel for the backing, and cotton fabric for the blocks, with a layer of red cotton fabric for the batting (since we are in Florida, and winters are definitely not as cold). I decided to take a chance on the red for the batting so it would show up in the rag fray, but I made sure to soak all fabric in Retayne to make sure the colors wouldn't run when she washed it in the future. I also pre-washed in Dreft Gentle Detergent to make it extra soft and fluffed. I like how the bright colors turned out. I made a little matching tag blanket to go with it.