hi, glad you responded to my quilt,
the puff is fiberfill, the same stuff you put in stuffed toys, you buy it by the bag. I made my bottom square 5" out of muslin and the top square out of material 6" then sew taking a small tuck on each of three sides, when pockets are made then sew into a row as long as you want your quilt, after you get 2 rows sow them togeather with the open side of the pocket facing out and then stuff (not too full) then close the pockets with a small tuck in it and after both rows are sewn & stuffed then it is easy to just keep adding a row at a time till your quilt is a big as you want it..