I got a couple of little Valerian filled "pillows" for the kitties with Zooplus points a little while ago, and broke one out today. Girlcat initially treated it like a catnip toy, then suddenly went serious zoomies mode - bouncing around the room on & off furniture, pouncing on her brother, attacking every scratching device in the room. And there was me thinking it's supposed to work like catnip, which usually gets her completely stoned & dribbling on the floor!
Ah well, exercise is good for her and as indoor cats they probably don't get enough. Her afternoon nap does seem to be even deeper than usual today, reckon she's worn herself out 