To you and me, it's a laptop bag you bought for your computer.
To a cat, it's her latest cat bed, from which she will not move.
To you and me, it's a basket of freshly-washed laundry.
To a cat, it's a cat bed.
It's inevitable: if it's soft, if it's warm, if it's cushy or comfy in anyway, one of the three cats in the house will claim it. This includes human laps and bellies as well.