Interesting data point: back when I was practicing jhana before bed every night, I had a much higher frequency of lucid dreams. I also tended to wake up feeling very refreshed and acute.
Interesting recurring experience: I'll have these dreams where the whole dream will just vanish, and then I'll be lucid/semi-lucid, and there will litereally be no perceivable vision/hearing/sense of any kind of body, but there will be this feeling of consciousness with no point of reference, kind of hard to describe. But when it happens, there is suddenly a gigantic burst of bliss/joy/ecstasy. One time, this presented itself like this:
Anyways, sometime later in the night while I was asleep, I had this really fascinating dream where I was in some kind of basement with people, and there were all these doors. I saw these two girls that were trying to get my attention, and I tried to go to them, but the dream shifted and they were gone. Somewhere along the way, I realized that all the doors were leading to the places I was expecting/intending, so I went up to a door and put a ton of intention on seeing the girls who were trying to get my attention. I opened it, and the dream suddenly shifted and everything was black, there wasn't any body or dream-scape, and I just felt like a mind floating. Everything felt very intense when this happened, and tons of energy and joy came surging over me. I wasn't having a lucid dream, but it definitely had the distinct conscious feeling in a lucid dream. I don't really remember much from the dream except that scene. I've been noticing similar dreams, where there will be a tense, climactic, anxious feeling, then a sudden shift with a lot of energy and that conscious feeling.
I don't remember having these dreams before a certain point in my meditation practice, but now it happens quite often, even when I'm not practicing. I have no idea what, if anything, this corresponds to. Maybe A&P. It is quite great though. It is really the only instance I have ever seen of there being little to no perception of dream senses but awareness being high.