While 'Cat Napping (1951)' mightn't be as visually appealing as some earlier 'Tom and Jerry' shorts (though it's far more appealing than most later ones), it's still a fantastically fun affair thanks to its strong, if simple, concept and consistently amusing sight-gags. Indeed, its simplicity may be its strength; it allows it to focus wholly on the conflict between its two stars. Here, that conflict revolves around a hammock, which creates a clear goal for both core characters and a solid structure for the narrative to follow. The entire piece feels like it's calling back to the more straightforward cat-and-mouse stuff of the early 40s while still maintaining the overall momentum of the series. It's an enjoyable experience that often makes you smile. 7/10