I was thinking about general sleep questions today and I was curious how LD's may differ depending on whether or not the dreamer was a heavy or light sleeper.

I lived in Florida as a kid and my location let us hear sonic booms as the space shuttle would come in to land. Needless to say, even a few miles from the space center, the sound was loud enough to startle you if you weren't expecting it. On one descent I remember a sonic boom actually caused my dog to jump through the screen on the screened in porch :p while I laid in bed, never hearing a sound.

I know of people who are far heavier sleepers and I, and some who wake up at the slightest noise! Does anyone know if light sleepers have a harder, or perhaps easier time with certain aspects of lucid dreaming? Perhaps experienced members could list what type of sleeper they are and what they think.

Also, since REM sleep occurs at around 90 minute cycles, and progressively gets longer the longer you sleep - will waking up in the middle of the night, sort of "reset" this internal clock our bodies have and begin right back from where we started when we fall asleep again?

Thanks