I actually believe there is a benefit, at least there was in my life. I was trying different herbal supplements that were supposed to improve your sleep quality, and hit on a mixture of ashwaganda, green tea extract, and magnesium that let me lucid dream almost nightly.

I found that, because my dreams were so much fun, I looked forward to sleep, slept longer, and had a better overall quality of sleep. I'm not sure how much was the "behind the scenes" work of the supplements, versus the fact that I was genuinely having a good time in my dreams.

Either way, I was better rested when that was happening, and essentially living two lives. It was super cool.