We routinely see patients with dementia in our sleep clinics but often do not meet them until they present with a sleep complaint such as insomnia or obstructive sleep apnea. We know that sleep and dementia have a bidirectional relationship. Is there a way to identify those who are at higher risk of dementia and intervene earlier? Is there a polysomnographic fingerprint? Should polysomnography be performed in those who are felt to be at higher risk of dementia? How can we, as sleep clinicians, potentially impact the course of dementia? Are there special considerations for our patients who have dementia and a comorbid sleep disorder? Dr. Brendan Lucey help us explore these issues further.