i just bought some very thin batting at joann's . i believe it was mountain mist something rose. it was 100% cotton and it was so much easier to work with. it was on sale for 50% off. going there tomorrow and getting some more - i have a 50% off regular price. i noticed at our quilt show that the our marketplace was very thin batting. i asked and they used 100% batting. i just like the look of the bags without all the bulkiness of warm tater.