If you're having difficulty sleeping, try avoiding use of electronics at least 2 hours before bed. Do not consume caffeine after 4pm. Practice good sleep hygiene – go to sleep and wake at the same time daily. Avoid alcohol. Do not work in bed. Consider cognitive behavioral therapy. Meditate prior to bed. You can also try the complementary supplements on this page.
NOTE: Kava and valerian root not recommended because they can be hepatotoxic and have not been studied well in humans, particularly those on chemotherapy