The widespread working-time arrangement of shift work, and especially night work, poses a health risk to employees. Although the proportion of shift/night workers in traditional fields (e.g. the coal industry) is in decline, the increasing flexibilisation of the European labour market is bringing about a discernible increase in atypical forms of employment, i.e. shift and/or night work (Beermann, 2009). Based on the BIBB/BAuA 2012 Employment Survey, an investigation is made here of employees in Germany who work shifts with a proportion of night shifts (subsequently referred to as night work). These are compared with employees who work traditional, normal working hours. The focus of the analyses is on frequently occurring working environmental conditions, as well as on common physical and mental working conditions and the resulting subjective stress.