Alzheimer's disease (AD) affects memory and thinking skills. This study looks at whether a dietary supplement called **citicoline** can improve sleep and thinking in people with AD. Citicoline is a natural substance that helps brain cells communicate. The study is 3 months long and includes 20 people with AD. Participants will take either citicoline or a fake pill called a **placebo**. This study is **double-blind**, meaning neither participants nor researchers know who gets the real supplement. Sleep quality and thinking skills will be measured through tests and questionnaires.

• **Study Duration:** 3 months with two visits (start and end).
• **Participant Criteria:** Must have AD, be 18+, and live in the US.
• **Compensation/Risks:** Participation involves taking a daily supplement and attending two visits.

Eligible participants should have a confirmed AD diagnosis, internet access, and understand English. Those with certain health issues, such as severe heart problems or epilepsy, cannot join. The study aims to improve life quality for people with AD and their caregivers by addressing sleep problems.