Sundowning is a state of increased agitation, activity and negative behaviors which happen late in the day through the evening hours. When sundowning, the person may become demanding, suspicious, upset, or disoriented, see or hear things that are not there, and believe things that are not true. They may pace or wander around the house while others are sleeping. Here are some tips for potentially reducing the occurrence of sundowning and softening its effects when it does happen.