Noticing the circadian pattern of Charles B's depression, Dr Wehr asked him to get through a night without sleeping, and then to increase his nightly sleep only gradually, so that for almost a week he was awake during those crucial early-morning hours.

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In regards to your particular question, bipolar disorder (also known as manic depression) is nothing but a description of a certain pattern of symptoms.

CNN: Can a manic episode look like a tantrum?

In the case of bipolar disorder, the pattern requires the presence of at least one manic episode and usually also includes episodes of depression.

CNN: Can a manic episode look like a tantrum?