The fleeces are sorted, and washed with only hot water and vegetable-based soaps (no detergents, chemicals, or chlorine bleach).
Also, due to the fluffy nature of the woolly's there is less pressure on the ear while providing a supportive sleep surface. Organic cotton sateen outer comes with a zipper so you can adjust the amount of fill to your personal comfort level.
Remove woolly's before washing cotton outer. USA Made from clean organc ECO Wool, organic cotton sateen outer.