Does anyone have experience with using bright light therapy? White flurorescent lights in SAD (Seasonal Affective Disorder) lamps are supposed to mimic the sun in quality and quantity and therefore lift a person's depression and increase energy. However there's a caution on the amitryptilene that I take to help me sleep, to "avoid prolonged or excessive esposure to direct and/or artificial sunlight." I'm trying to decide which is better, to sleep at night or be awake in the daytime. I can't seem to do both. I'd appreciate any help. Thank you.