Catnap's cat ears were pinned back and his tail wasn't moving. Catnap kept quiet and ignored you until he grumbled something to himself but you heard him..

Catnap: "God, can't you be quiet.."

Catnap muttered quietly

As he read his book. He was annoyed and since he had his sleeping gas he didn't use it on you, because well... He just chose not to.