Need help with cat bed patterns

[Nostalgia]

Hello all!

I found this cat bed image on a cat shelter Facebook page and fell in love! I figured out that it uses Bernat Blanket Yarn (Super Bulky (6)).
Could anyone tell me what type of crocheting is this? It looks more twisting than double crochet.. I also wonder if the wall is folded and stuffed. 

Thank you so so much in advance! Any input will be very much appreciated!

[Granny Square]

I knit and crochet, and I am not ruling out it being crochet, but leaning toward it being knit stockinette by a knitter who doesn't realize they are working in the 'wrong' leg of the stitch and twisting their stitches (this is not an uncommon thing).  I would recommend US SC (same as UK DC, I'm not sure where you are).  US DC or UK Treble would be too loose, you'd want as tight a stitch as possible--if it is stuffed, you want the fabric as solid as possible so the stuffing to stay in there, and if not, tighter would give it structure so it might not need stuffing.  Some free crochet patterns in bulky weight yarn--

http://www.lionbrand.com/crochet-pattern-curl-up-kitty-cat-bed.html?noImages=0;ss=   looks like the stripes are added at the end, so optional

http://littlemonkeyscrochet.com/tabby-chic-cat-bed/ not the twisted look you liked, but another interesting look

https://www.woolstreet.ca/crochet-cat-bed-pattern/

https://thecrochetcrowd.com/crochet-padded-rim-cat-nap-bed/ this says it's stuffed

https://www.ravelry.com/patterns/library/the-sleepy-kitty-bed

http://dolls-yarns.blogspot.com/2017/11/free-project-fluffy-dreams-pet-bed.html  stuffed

 

 

 

 

[Nostalgia]

Thank you so much for your quick reply!
Ah yes it does look similar to a twisted stockinette.. Hmm. 

Also thank you for lots of ideas, actually the 5th link is very close to the look I want! 

I'll try making this, and hopefully I can share the outcome on this site

Thanks again for your help,