Pampers Japan – Among all the free stuff I got while staying at the hospital was a pampers box. The pampers box came with four nappies(diapers), a pack of wipes for delicate skin, a sample of baby washing detergent, information and coupons for nappies and baby goods at toys-r-us and akachan honpo. Pampers is the most popular brand used by hospitals for newborn babies in Japan. They are also very popular among consumers even though there are cheaper alternatives available. You can buy pampers nappies in most baby and hardware stores. However, in my experience Nishimatsuya does not carry the brand. You can also buy Pampers nappies in Costco and other foreign retail stores. For the record, I actually have found Cainz to be the cheapest for Pampers nappies.