CONTROL YOUR SLEEP HABITS!. Bipolar  Affective Disorder BIPOLAR 2.Bipolar 2 disorder involves a major depressive episode lasting at least two weeks and at least one hypomanic episode (a period that’s less severe than a full-blown manic episode). People with bipolar 2 typically don’t experience manic episodes intense enough to require hospitalization.“When you lie down, you will not be afraid, when you lie down, your sleep will be sweet.” (Proverbs 3:24)