If you do mix it all together and add use a voice to guide the listener than I would I would like to be able to get a copy of the sound file since I don't have the software to mix sounds together on my computer. When you make it could you please put it somewhere and put a link to it for people who are interested in it to download? I think it would also help a lot if it started out with deep relaxation instructions to help the listener get closer (if not into) the hypnogogic state, and after that lower the volume of the speech a little bit for the lucid dreaming suggestions. If you want you can also emmbed some of these commands into the relaxation part at the beggining to put the idea in the listeners mind early on in the sound file.