I find your name ironic because I suffer from pretty intense insomnia when I'm not smoking, so I actually read IamN2Pots substitution and dilution threads so I've got a pretty good idea of what my options are, but I always like as many opinions as I can get because there are people here who are faaaaar more experienced then I can ever hope to be (FBR) and everyone looks at a situation from a slightly different point of view, and that can provide you with something you may not have seen before.