This won't work for everyone, only those who are capable to getting into this state.

I have a common disorder know as "sleep paralysis", a disorder that stops you from being able to move upon waking from sleep, or as you go to sleep. Most people with this disorder do everything they can to avoid this state, as it can be the most horrifying experience of your life. And I'm not even exaggerating. The first time this happened to me, I was convinced that my soul was about to be eaten alive by demons, while all I could do was lay there helpless. Anyway, if you are able to induce this disorder, then inducing a lucid dream is a peice of cake. Here's what you need to do:

1) You need to be fatigued/sleep deprived. Sleep paralysis is a DISORDER. The reason I can get SP everytime I try is because I can feel if I'm mentally fatigued enough beforehand. There is a certain "brand" of fatigue that is perfect for inducing SP. You would think that staying up for a long period of time would be the key, but it hasn't ever worked like that for me, as I fall asleep the second I close my eyes. What I do is wait until I'm really tired, fall asleep for two hours, force myself to wake up and stay up for another 8 hours, and repeat until I've finally reached the ideal point of fatigue. The trick is to fuck up your sleeping patterns.

2) The best position is to be on your back. It can be done with any position, but this is the best position to be in because it's easiest to feel separate from your body. I will often twist my neck into an uncomforrtable position to feel even more separated from my body.

3) When you feel SP coming, close your eyes and focus on any auditory or visual halucinations. Don't be afraid, just absorb yourself in whatever you see/hear. Think of the halucinations as like a portal to the dream world. If you focus on them, they will take you to dreamland. And believe me, I've had lucid dreams outside of SP, and they don't even compare. Once you open yourself up to the world of SP induced LDs, you're going to have to fight the urge to sacrfice your real life for the most realistic fantasies you could imagine.

I apologize of this post is incoherent, but I'm extremely fatigued, and on my way to another SP experience