Sudden mood changes, sleeping problems, restlessness, discomfort with dark corners and limited vision – such is the everyday existence for people suffering from dementia. To make life easier for those affected, increasing numbers of homes for the elderly place their trust in Human Centric Lighting (HCL). Light not only verifiably improves wellbeing but actively contributes to moderating the fears of patients. This was also a recognised at the Bischof-Ketteler-Haus in Berlin, and TRILUX HCL systems are now used in the facility.