I had this happen a few years ago. I got I think it was a dollmakers needle that was, goodness, maybe 4 or 5 inches long? can't quite remember, but, I stuck it in just under the quilt top fabric and sort of swept it back and forth in between stitching areas to pull the batting back through the fabric. After that I hand washed the quilt. As long as it didn't go in the washer it was ok.