When I first went to sleep last night, I slept on my back and had pretty vivid dreams but didn't become lucid. After I woke up, I then went back to sleep on my left side. A bit into my next dream it was pretty easy for me to do a reality check and gain lucidity.
I read somewhere that in practicing dream yoga one step is to see which nostril is easier to breathe through by closing one and taking a few breaths. I found that it's easier for me to breathe through my right nostril -- I guess sleeping on my left side helped me to breathe better or to align my polarity or something

I practice yoga and meditation, but I haven't read very much about a relation between breathing and lucid dreaming. Is there some way to put these things together and be more consistent with LD-ing and using a pre-bed routine?