Sometimes lately, while i'm laying in bed, I wont' be paying attention to my breathing, but for about 2 - 3 seconds, I'll suddenly notice a very different vivid feeling and noise when I breathe and then be back to normal, more awake. Its hard to describe, but its totally different than normal, even though I'm breathing normal.

Would this be due to my body getting ready to pass into sleep, but me retaining consciousness, and could I use it to become Lucid?