Why do cats like cardboard boxes?

[Tobi]

(08-10-2018, 04:31 PM)Catslave Wrote: I've bought my cat some of the best cat beds going she likes the el cheapo one from a discount store the best,go figure.

The cat I'm looking after climbed high up in her room until she found a cardboard box filled with packed china. It must have been the hardest, lumpiest bed and there were spiders' webs up there but she thought it was great, Meanwhile she has 3 soft and lovely comfy beds she ignored!