According to my step-mother, my dad, who suffers from Alzheimer's disease, stays awake every other night just walking around the house or sitting in the living room. I can't say that this isn't the truth because I am not there.Since he constantly talks about going home, I think he doesn't always realize that he lives there and is waiting for someone to take him home to where he sleeps. . They have been married for 15 years and Dad's memory at times takes him back 20 years and sometimes 60 years.Dad is 86 years old. I suggested she give him a calming tea or maybe even Melatonin. She says he won't drink tea and refuses to give him Melatonin. Has anyone tried a lavender essential oil vapor or another sent?