Here is what I have done with Hobbs battings for years:
Fill your machine; load the batting in; turn the machine off; let it sit for 10-15 minutes; set the dial to spin. Take the batting to the dryer; set on air dry and whirl about 10 minutes.
The batting will still be damp so just lay it out over the sofa overnight and it will be perfect for you in the morning.
Jan in VA