One of my husbands favorite quilts that I made just for him is double batted with a poly high loft bat. He loves it and it is the warmest quilt he has and he has loved it now for 30 years. He is always asking me to make him another one. It was difficult to quilt on my DSM and I did not quilt it closely. I actually put a couple appliques on it that he is in love with. IT has lasted a very long time with continuous use. One thing it is harder to keep the double bat from shifting. You might want to try Elmer's Washable School glue to baste the bat together and then baste the rest of the quilt. I love EWSG for basting a whole quilt.