I purchased about 3 bags of Bamboo filling. Put it into a pillow and when I went to wash and dry the pillow it was very lumpy, I had the pillow in the dryer for 2 days (thinking something was wrong with my dryer) after 2 days still was not dry. Finally had to sit the pillow outside into the sun to get it dry. Once it was dry I opened the pillow and took the Bamboo filling out. It is still lumpy, I am going to have to sit here and pull it apart to make it nice and soft again.