Walmart has Fairfield 80/20 cotton that I can't tell any difference from Warm and Natural. Also you can get W&N on the bolt at Walmart. I use Hobbs wool for most of my quilts, 80/20 for utility and donation quilts. When Connecting Threads have a sale on Hobbs batting I stock up. Usually about three times a year there will be a 30% sale. Sometimes I use two layers of batting and I mix the wool with the 80/20. I don't like 100% cotton batting.