My grandma gave us 6 zabuton (cushion used when you sit on the floor) when we moved to Japan.
The innards are quite flat, not "poofy" like the zabuton you see here.
I think it may be due to the type of filling that my grandma used to use.
After asking my aunties about changing the filling, I bought 2 zabuton from MUJI and they are "really poofy".
My grandma's filling is about an inch or two thick, while the MUJI one is 4 or 5 inches thick...
Anyway, after channeling my grandma & mom (both were great at sewing) and "squeezing" the MUJI zabuton in, I was able to change it...whew!
Instead of buying 6 zabuton all at once, I decided to try with just 2...now I know I can do this and will go back and pick up 4 more.
Thanks Grandma & Mom.