Inclusion Criteria:

• * Age: 60 years or older
• * Diagnosis of Mild Cognitive Impairment (MCI)
• * Pittsburgh Sleep Quality Index total score \>5 or Epworth Sleepiness Scale score of ≥ 10
• * Read and understand English
• * Have Internet and email access

Exclusion Criteria:

• * No telephone access
• * Must not be taking any medication known to affect rapid eye movement (REM) sleep (or sleep architecture in general)
• * Use of choline supplements.
• * Epilepsy or head trauma resulting in unconsciousness in the past two years
• * Known allergic reactions to components of Citicoline
• * Presence of chronic obstructive pulmonary disease, asthma, severe cardiac insufficiency (congestive heart failure, myocardial infarction), type I diabetes, vitamin B12 or folic acid deficiency, liver cirrhosis, thyroid dysfunction, rheumatoid arthritis, chronic renal failure, severe/unstable psychiatric disorders, moderate to severe obstructive sleep apnea, restless legs syndrome or periodic limb movement disorder
• * History of alcohol dependence and drug abuse
• * Night shift workers or those in situations where they regularly experience jet lag or have irregular work schedules