ZMA supplement does give vivid dreams and sleep that feels is not that deep. It is hard to describe. If you use, I would suggest use it in smaller doses by cutting the pill. It is better to take Zinc supplement which would be less expensive, and Zinc also increase semen/sperm count and libido. But, I have found that Zinc normal dosage pill makes me slow and lethargic and cant workout that well. So, tinker around dosage frequently. If you routinely take a certain dose, it becomes not so effective and then you just not take few days or change the dose; you will see your body reacting well to it again. It is sort of "shock" therapy to the body.