high-loft filling material

Dear users, dear authors,
I read this in a product description, but I don’t know what “highly fluffy filling material” is. Can someone explain it?

"Highly fluffy" filling material is very soft stuffing, well-suited for stuffed animals for toddlers, but also for older kids ;-). If you squeeze it in your hand and then let go, it goes right back to
the same size it was when you first picked it up. You can also use it for sofa cushions, but it’s not as well-suited for seat cushions or upholstery because it compresses and, unfortunately, doesn’t hold its shape well in those applications.

Best regards, Inge

Thanks, Inge, for explaining.

Hello Akela , thank you for the explanation. What would you recommend for sofa cushions and seat cushions?
So far, I’ve always used filling material from the inner cushions I bought at the Swedish furniture store. But especially with larger items, I’m not happy with it. The material doesn’t distribute well and deforms the cushion. 
Thank you very much 
Tatjana. 

Hi Tatjana, I sent you a private message with info on the stuffing for pillows and other items.
The material retains its shape well and is firm—ideal for sofa pillows, in particular.

Best regards, Inge