Well I did wash the flannel and it turned out to be more of a disaster than what I expected. First let me say I don’t dry any of my fabric completely I have always taken it out when damp and pressed it. Now my mistake with this was that because I wasn’t going to wash it I had put a border on the wide back which I didn’t think would be a problem. So I washed it and it completely disintegrated at the seams! This quilt is at the point of putting it in the trash. I’m just so tired of all the problems I’ve had with it. This is the third backing I’ve purchased and there was a problem with each of them.
No one has responded to the question of whether it would be too warm with both batting and flannel? Thanks for your response.