The red tart cherry is a natural source of melatonin and a lot of people are starting to drink the cherry juice for sleep benefits. I just wrote a great article about the cherry juice sleep benefits. It includes information on published research regard a two week study conducted on older adults and how drinking cherry juice helped the participants in the study to get an average of 17 minutes more of sleep. In addition to including this information, I've also include the comparison of the amount of melatonin in the different tart cherry products including the fresh fruit, the liquid and the cherry powder. It's a short 550+ word article and here is the link for you to take a look at it.