Need Experienced Nurse In Dealing With Parents Who Have Dementia And Alzheimer's

My mother was diagnosed with Alzheimer's 4 years ago and she is in a stabilized state in the progression of the disease. She is in the latter stages of the disease which requires wiping after using the bathroom, showering, changing, and feeding. My mother is a sweet caring person and does not exude violent behaviors or tantrums. She laughs at almost anything and smiles most of the time. My father is also in the same age, has mobility issues but is able to take care of himself mostly, aside from cooking or heavy lifting. He uses a walker. He was recently diagnosed with cognitive decline. We need someone with experience in dealing with sundowners, among other Alzheimer's symptoms to cover evening hours.