We have three cats, two young and a bit older, and all 3, they showed no interest. The Elder has even laid ostentatiously beside the pillow on the cold ground, the others have only once sniffed it.
Too bad, because the pillow itself is really nice. However, it was on the back already wool (inside the cushion) between the seams on the outside visible. Either in the production was just over sewn over the rest wool or it has pushed itself. The quality is thus not 100% consistent.
Therefore 4/5 stars for the actual pillows and 1/5 stars, because it (give pleasure to cats) for my purposes is not to be used, and I have to send it back therefore.