Multi-sensory stimulation or „snoezelen“ is people in advanced stages of dementia. It is founded on the assumption that sensory deprivation leads to agitation, anxiety and/or aimless wandering. In multi-sensory stimulation the senses are addressed by lighting, colors’, touch, scents and sounds provided in adequately designed environments. Multi-sensory stimulation contributes to the amelioration of behavioral symptoms and mood disturbances during and immediately after the sessions. The efficacy of “snoezelen” in the long term is still elusive.