If you'd like to see an example of how different cats' personalities are, read this thread: http://petoftheday.com/talk/showthread.php?t=152705. There are some cats who seem to like sun bathing more than anything else but it's usually when they're old. All cats like their naps, though, but that certainly doesn't mean they're lazy slugs. As others have suggested, if/when you do adopt a cat, make it a couple. You won't regret it. They bring out the personalities in each other.