Not wise to wash a wool blanket with cotton as wool causes lint and would need to be washed at a lower temperature than cotton to avoid shrinkage, Wool should be washed in cold water only and wool type detergents must be used to help clean and soften the wool fibers, I would suggest as a least expensive alternative to washing this afghan blanket is using half cup of Baby Shampoo poured into your washer on a gentle cycle (gentle cycle avoids stretching wool ) in cold water only, you can dry in the dryer but on a delicate or low dry becareful not to overdry Good Luck !