Came across this in another forum and thought I would share it here want to give credit where credit is due this was shared by phdubrov from a competing forum and not sure they participate here the add on can be obtained from here

https://gist.github.com/blendedmarks/cd045c3663f0fe2cd0e92d88a8ae2274

and short video of the add on in action can be seen here https://youtu.be/olK2FcmXNds

I saw PHD's post, and immediately went and downloaded the script. I haven't tried it yet, but it should be interesting.

It should be interesting I have not had a chance to look at the git hub site but also saw a post about the script at Blender Artist forum.

I tried it and it works. Though there are no options for different shaped pillows. For instance round. Though you can get a few different looks in a square pillow. Depending on how you change the settings in Physics.

It is not a bad little add on and currently limited to square pillow but it is an initial starting point there are several decent pillow tutorials on Yuotube that are not overly complicated or difficult to follow. I think one of the difficult areas is getting nice folds from simulation that would need some sculpting to get just the right look

remember a tut for pillows/balloons that used the cloth sim make shape an set Collison to silly numbers worked on most shapes ...........but blow to hard an balloon bursts lol