Another recommendation of music to enjoy with your watchcat during a siesta: Astrud Gilberto. Some of her vocals have that winding-down-for-the-day aspect I mentioned about Toots Thielemans, while others have life-affirming energy.
Watchcat Collette has responded equally contentedly to both aspects of Gilberto's singing during her breaks from guard duty, so I'm pleased that my musical selections are being well-received.