“…The SEIPS model acknowledges that the nurse work system is comprised of individuals and their interactions with the environment, tasks, tools and technology, and the larger organisation through policies and regulations (Carayon et al, ; Holden et al, ). As part of the nurse work system, the physical health care environment (PHE) has been identified as impacting nurse fatigue through environmental variables including unit, breakroom and patient room layouts, lighting, noise, temperature and supply locations (Nejati, Shepley, Rodiek, Lee, & Varni, ; Steege et al, ; Steege et al, ; Zadeh, Shepley, Williams, & Chung, ).…”