For about a week, I have used a SAD (seasonal affective disorder) therapeutic light on my desk while I work. I am currently taking the usual dosage for wintertime, which is 16 mg. of Navane at bedtime. I find that I am very, very calm and relaxed--almost as though I am taking too much antipsychotic medication. The web does not address my question. Do SAD lights help with the bipolar element of schizoaffective disorder? Does anyone suspect, as I do, that I may be able to reduce to the spring and summer usual dosage of 12 to 14 mg. of Navane?