Most families do not wake up one morning and decide a parent can no longer be alone. The question creeps in slowly. Mom called twice at midnight to ask what day it was. Dad was found in the kitchen at 3 a.m. with the stove knob turned. A neighbor mentioned seeing the porch light on at dawn and the front door standing open. Nights are different from days, and for a person living with dementia the difference matters a great deal. This article walks through the signs that suggest nighttime…