MATTRESSES WERE STUFFED WITH COTTONWOOL. IN TIME THE COTTONWOOL WOULD GET PRESSED FROM USE AND WOULD LOOSE ITS ELASTICITY.
A COTTON PUFFER "NADAF" USED TO COME WITH HIS TOOL - A SPECIAL BOW AND A WOODEN HAMMER. HE USED TO STRUM THE CORD OF THE BOW AND THE VIBRATION OF THE CORD CAUSED THE COTTON TO BE PUFFED.