Once again I love it when a mystery is revealed, or at least partially explained. I was reading a case study in the Journal of Clinical Sleep Medicine and it helped confirm a hypothesis I have had for a while about the importance of vitamins to your sleep. Look at the busy B's: Did you know that vitamin B can help regulate the use of tryptophan? B3: has been shown to increase REM sleep, help with depression in some cases and a decrease in nighttime awakenings. B6: is essential in the production of serotonin, the "calming" hormone that helps calm the body before falling asleep. Folic Acid: Deficiency in folic acid deficient can be found in those with insomnia. Important Minerals: Calcium and Magnesium, taken in a 2:1 ratio, can be helpful for sleep. Calcium: is a natural relaxant which has a calming effect on the nervous system.