We have a cat like that. My theory is that he's so soft (he's long hair) he needs something stable to lay on and he's already comfortable due to his softness.
Picture of what could be his sister. Her name is Bea. Cool with us. Not a fan of anything with fur.
Max gets an A++ on being a cat. He is doing his job with such graceful diligence. I recommend a raise of 2 cat treats per week.
Yesterday my cat pulled the garbage bin over in my office and pulled it's entire contents out on to the floor so she could use a napkin as a little bed for herself.
My cat is addicted to paper. He'll literally make his own nest to lay in and make a ton of noise crinkling with. Cardboard too.