I think there are also folks who back with flannel and skip the batting, if that's a possibility for you, nhweaver. I'd definitely prewash as ckcowl pointed out because it does shrink quite a bit. Also, there's a huge difference between the quilt shop flannel and big store flannels. Big store versions tend to have a lot of polyester in them, quilt shops carry a heavier weight cotton flannel of much higher quality (admittedly at a higher price).
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