Soft, squashy seats (8)
I believe the answer is:
beanbags
(Other definitions for beanbags that I've seen before include "Sacks filled with plastic granules, used as seats" , "Soft containers filled with granules and used as seats" , "Large cushion-seats filled with plastic granules" , "Large floor cushions filled with polystyrene balls" , "Kind of sack-seats filled with plastic granules" .)