I used to use Warm and Natural, but don't any more. Compared to other battings, it is stiff with a stiff drape. I prefer Hobbs 80/20, Mountain Mist 100% cotton blue ribbon batting (thin vintage look), Hobbs PolyDown, or Hobbs wool. All are softer and cozier to wrap around oneself (or a baby).
I do like the stability of Warm and Natural for wall hangings and tied quilts.
Plus, as others have said, the scrim in it is poly and it will shrink up to 3% the first time it is washed.