It happened to me a few times, in different settings. I had already been doing psychedelics since 17, mainly acid.

My first AP: I was around 18 or 19, in my room, and I remember feeling really tired for some reason so I took a nap. As far as I can recall I was sober that day.

During this nap I had a seemingly insignificant dream but it was quite vivid. I was at a nephew or brother of a friend of mine, one of the two. Thing is, I didn't even know if he had a brother or nephew, nor did I know where he lived.

I told my friend about it and I described the interior of the house. He was stunned, because my description lined up exactly with how I said the place looks. He showed me a picture of the place some time later and yup, that's the place I was at in my dream.

Second AP is more straightforward, I was listening to some oldschool goa on acid in my room, in a meditative body position. At a peak in a certain track, (I had my eyes closed) I "ascended" for about 10 seconds with the viewpoint as if I was floating 20+- meters above my house. It was incredibly detailed.

Those days are way in the past for me, I have had a lot of other insanity in my youth such as dragons emerging from the ground but that's a story for another time haha.