My person has been getting organized lately, and that means a lot of boxes for me.
Sometimes, I like a spacious box:
Other times, I like a very small box...
even when there are other, possibly more comfortable, options:
Occasionally, a box lid suits me just fine:
Or, for something totally different, an open book that my person needs for work:
Overall, I enjoy lounging on, getting inside, and occasionally biting, all cardboard and paper, particularly if my person is using it.