Fluffy couch

Hi, I’m trying to model something similar to this couch, does anyone have any tips like what commands would work best?

the couch:


Or in v7 with SubD

Maybe with pipe, scale (z direction),and flow along curve

Subd in Rhino 7 is where I would start:

draw a fancy curve in top view, extrude it, delete the perimeter then use BlendSrf, done in 1 minute.