What it means
A pattern of behavior changes as daylight fades. The person may become more confused, anxious, suspicious, restless or prone to wandering. Tiredness, low light, shadows, hunger, pain, a full bladder and changes in routine can all add to it.
For the nurse
Keep a steady daily routine, open the curtains and encourage activity in the daytime, limit naps and caffeine, turn lights on before dark, and keep the evening calm. Check for pain, hunger and toileting needs.