Holy crap, night two is hard, but I've tracked a pattern.
Pop-cat will appear in the doorway (12 am), Pop-cat in the closet (12 am), Tuxedo Boi on the bed (1 am), Floppa in the doorway (1-3 am), Bingus in the closet (I think 3 or 4 am). Then the rest you can handle.
Okay so that pattern I, "tracked" isn't accurate, the cats will appear at one place sometimes, the another at other times.