I have been studying (imagination routed to primary visual and audio area) hallucinations and (impaired frontal cortex activity) delusional thinking associated with spiritual psychosis, also called spiritual awakening or other nice sounding name by those who believe it’s a good thing to develop.
From what I read the interruption of sleep to achieve lucid dreaming has caused some people to develop a little schizophrenia, which has warning signs that include loss of normal sleep pattern. It is also possible to have very frightening experiences. Years ago, after having gone a couple of days with no sleep due to dinosaur tracksite work I was excited about I experienced a brief waking/lucid audio that scared the crap out of me. I then stopped forcing myself to stay awake for that long. Never reoccurred.
Soon after going to bed my visual mind’s eye is on occasion very vivid and I can move objects around. Unfortunately that led to shocking visuals and I now normally squelch them before they get too real and jump in me face, or morph into something gruesome. When I was younger I did what I could to develop the ability, then after reaching ~45 I was happy with what I had for a brightness/realism level.
Your lucid dream experiments are at least neurologically interesting. Exactly how that happens is one of the mysteries I’m trying to solve. Sleep interruption methods have a small risk that you might not totally come back, to reality, but otherwise I would in either case be interested in your results. So pleasant dreams guys…