And yes, that sofa is amazing. If you'd be willing to share more info (or even sell the model/technique) I'd be extremely appreciative.
These are about 6-7 variants of "wisps" created with Ornatrix, they look like a semicircle, just multiplied and slightly fluffed up. And 3 Forest Pack scatters, 1 for small wisps that fill the entire surface, 2 for large wisps, there are slightly fewer of them, but both the first and second scatters use the Full distribution mode to form a grid pattern. The 3rd Forest Pack is for individual hairs made from splines. Thats all basically.