If you have an Ikea near you, check this out
http://www.ikea.com/ch/fr/catalog/products/51725112 It's fairly loose weave and feels a bit stiff when new but it washes up lovely and soft. I've used it for backings too - great as it's 150 cm wide - cheap too! By the way, be sure to prewash it as it does shrink a bit.