This study investigates sleep disturbances in people with Alzheimer's Disease, mild cognitive impairment, and their caregivers. Sleep disturbances can include problems like insomnia or irregular sleep patterns. The study will use a new no-contact sleep sensor, called the Sleep Monitor, to track sleep patterns. It will compare the Sleep Monitor's results to two other devices, the Withings Sleep Mat and the Zephyr Bioharness.

Participants will use these devices to monitor their sleep without physical contact. The Sleep Monitor is a device that can track your sleep patterns by being placed near your bed. It does not require you to wear anything or change your sleeping habits. This study aims to see how well the Sleep Monitor works compared to the other two devices.

• Who can participate: Adults living in Marion County with mild cognitive impairment or Alzheimer's disease, or their informal caregivers, can participate. Participants must have a history of sleep disturbances and live in a community setting. Non-English speakers and those in nursing homes are not eligible.
• Study details: Participants will have a no-contact sleep sensor installed in their primary sleep area. This sensor will monitor their sleep patterns without needing to wear any device. The study will compare the results from this sensor with other sleep monitoring devices.