Pre-wash flannel?
I am making a "recliner throw" for my DH. He wanted flannel on the back. I have not prewashed the cotton on the pieced top. Do I need to prewash the flannel before I attach it? There will be straight line quilting (if that makes a difference). Thanks for any advice. (and please keep your fingers crossed - it's the first "quilt" that I've attempted. until now it's been table runners & mug rugs.)