3.对于以上2款枕头,如果配置为双枕套(一枕双套,方便更换清洗),您认为能否提升产品竞争力与客户购买意愿?For the above two pillow models, if equipped with double pillowcases (one pillow with two pillowcases for easy replacement and cleaning), do you think it can enhance product competitiveness and customers’ purchase intention?