Hi my dad who is 69 was diagnosed with Alzheimer's in 2009, although there had been small signs for a few years before. Up until a year ago he was reasonable, just lots of repeating and poor memory, but able to converse and be understood. He has deteriorated from this significantly, getting very confused, anxious and more verbally aggressive. More recently he is getting very unsettled around early evening and wont go to bed at a reasonable time I think it may be connected to some elements of sun downing, but also that he used to work nights as a London cabbie. Early evening was his time to get ready for work and he used to leave around 7.30pm and work til the early hours. I'm wondering if this old routine has returned to his mind, as he goes in and out of the house to check his car all evening, asks my mum where she has to go and refuses to go to bed, puts his coat on and says he is going to drive to certain places. He doesn't do this but gets verbally aggressive and very confused. Ive asked my mum to try certain tactics, reassurance, delaying and distraction, I can't be sure of her communication skills, but both are getting distressed and having late nights. Anyone else have any similar experiences and if so how has it been managed?