I googled: batting that is warmer than down. There were several sites. I cut and pasted the following info. Wonder if anyone has tried this and if it is managable to quilt on home machine. Quilters Dream Batting, Puff, Super Queen Size
Quilters Dream's "Puff" batting has exceptional insulation qualities. Light as a feather, yet 1-1/2 times warmer than down, and 2 times warmer than most high-loft polyesters. Loft is between 1/3 and 1/2 inch, yet very light-weight. Volume, definition and warmth without the weight. Fibers are carded, cross-lapped, & thermally bonded. Great for hand-quilting, machine-quilting, or tying. Confidently stitch up to 10" apart. No pre-washing necessary. Normally 0% shrinkage. Your pre-washing and selection of fabrics and thread will also affect shrinkage.
This listing is for a packaged Puff batting in Super-Queen size, which measures 120 inches by 93 inches.
Limited Quantity Available: 1 in stock
Price: $21.00