The silences surrounding Jews and Jewish culture within the Swedish folk lifesphere and within the historiography of Swedish folklife studies are examined in this paper. Emphasis is placed on one national institution, the Nordic Museum in Stockholm. The sleep at issue, then, is the undergrowth of embarrassed, taken-for-granted or hostile silences concerning ethnic/religious difference that could be found more or less throughout the 20th century, not only among the majority of the population but also among experts in the study of culture. It is argued that the silences and the lack of clear stances at a national cultural institution contributed to legitimizing xenophobia in the past and might well continue to do so among people who are lost, violently inclined, looking for scape-goats, and waiting to strike when the time is right.