Dude the SP things happen to me all the time. I sometimes wait like thirty minutes and nothing will happen. I just got my first WILD last night (after several attempts) and what I did was I opened my eyes a little while I was SP and I started hallucinating that my window was like a frog or something. lol. I then looked past it and the hallucination came less vague and it shot me straight into the lucid dream. It felt like going down a roller coaster.

So try opening your eyes a little next time you are SP.

good luck!