[Sudden infant death in Norway--does bedding play any role?]

During the last decade the occurrence of the sudden infant death syndrome (SIDS) has increased in Norway, which now has the highest incidence in Scandinavia. A factor which might explain the differences between countries is discussed. Use of different kinds of bedding in the different Nordic countries seems to correspond to differences in the incidence of sudden infant death syndrome. Temperature disturbance has been suggested earlier as a possible aetiological factor and the present hypothesis seems to be supported by results showing the effects of temperature on the syndrome.