Sofa cushions have many uses, especially in childhood. People sit on cushions. People sit cushions on themselves (some people really seem to love hugging a cushion while they sit: perfectly explicable for teenage boys, perhaps, but I don’t know why other people do it). And, of course, they can be used as defensive structures: cushion forts. Ah, happy memories. I must do it again. Why not? I live alone at the moment. I don’t really have the right kinds of cushions, though.