>>428Sometimes its hard quite to tell 'it seemed like x' from 'I know with 100% certainty that it was x', I hope you do not feel too dismissed.
The extreme clarity sort of reminds me of somethings that I have seen while slightly oxygen deprived. Ive seen things that feel almost like rips in my vision where there is a space of pure white that lies behind the wallpaper that is the visible world.
Usually for me these pass very quickly, a few seconds at most, and I do not need to do anything to make them disperse. I also do not remember any accompanying audio, but its been a while and I may have forgotten.
On the topic of SADS, it just occurs to me something I saw regarding SIDS as being perhaps related usually, to oxygen deprivation ( as when people lay their young children to sleep in such a way that they may get tangled into covers or squished, and have their breathing restricted or blocked). Skimming the wikipedia article I dont see that emphasized, but I wonder more if that is perhaps what you were experiencing.