Benzo? Not sure which you are referring to since it's a prefix for a few things. L-Theanine does nothing at all for me, don't know why; I tried it for some time as a substitute for Melatonin when I couldn't get any and it didn't help either with sleep nor dreaming.

And thank you for your reply, it's good to hear that it is a known thing, as I haven't found reference to it before on other posts or from other sources (but maybe I searched with poor keywords). Also appreciate the vivid dreams combo suggestion, I will look into it in the future I think, as I don't think I have ever tried B6 or Lemon Balm; also been seeing people mention Mugwort but I need to read up on some of these things again in the meantime.