The objective of this pilot study is to test the feasibility of a larger planned trial. The objective of this larger trial will be to determine the extent to which aspects of circadian rhythmicity, including, sleep/wake rhythms, daily social routines (i.e., social rhythms), circadian type (morningness/eveningness), endogenous circadian rhythms and polymorphisms associated with altered circadian function in specific genes (namely, CLOCK, Period 2 and Period 3) moderate treatment response in bipolar disorder.