Just what is it about freshly made beds that makes cats go wild?

I’ve had cats almost all my life, and no matter how different their personalities have been, they all love it when I make the bed. Especially with new, clean sheets; they just go crazy! Even my 16-year-old cat Pickle, who spends most of his time being grumpy and sitting around, starts hopping around and chasing his tail when I make the bed. It’s as if he’s changed right back into a kitten!

So, any theories about why this happens? And do your cats act the same way? Are newly made beds just that exciting?