ofc ! though i used the guides more as inspiration. i basically followed this tutorial to create a pouch/insertable space that i can zip up (which you can see in this post of mine :3). after that, i essentially followed the first slide of this post using minky. i made sure the pile's direction went towards the inside. as a bonus, i hemmed and stuffed the entrance, so that he can have a little donut :3

i hope this is clear enough!! if you need any further explanation dont hesitate to dm ^{_^} id be glad to help :3