I tried both. They both work. I think the key ingredient is the valerian root. Some marleys don't have the valerian root so it depends on the flavor. I like the tea flavors. I do not like the other berry marleys flavors. . Koma unwind contains the melatonin as well. I think the koma is a bit more powerful as a sleep aide because of the melatonin valerian root combo but both koma and marleys work.