- Enrolled participants can be currently taking standard antidepressant or mood stabilizer medication regimens, or benzodiazepine treatment for sleep as needed but not exceeding 3 nights per week. Medication regimens must be stable at the time of study enrollment (i.e., no medication has been started within 8 weeks, stopped within 6 weeks or titrated up or down within 4 weeks of study entry). No medications will be started or discontinued for the purpose of enrollment into the study