I have been reading all of the great info here and accidentally had a similar experience as nighteyes described to us a few days ago. I am hoping to get the name of what I did since it really was powerful.

I went to bed on Friday night, and forgot to turn off my alarm for work the next day, so after around 8 or 9 hours of sleep, my alarm went off. Coincidentally I was enjoying a dream at that time that involved me exploring a replica of my office at work, but in a much taller building (sky scraper, tallest one in the dream city actually). All the walls were glass except the one behind my desk. So, whilest looking out over the city I was awakend by my alarm.

As I awoke, I thought of what I had read here and though I do not know the name, I knew that waking amid a dream and re-entering it was some type of different dream experience. So I did that, and OMG!!! What a crazy feeling. As soon as I knew I was back in my dream in my office, I jumped straight out that window and fell forever. As soon as I landed on the ground (street actually) I jumped up over a building and fell to the ground again. I guess you could say I was leap frogging the buildings. This went on for about 3 or 4 buildings before I woke myself.

In the leap frog session, I had some interesting experiences. All of my body respsonses felt proper for free fall....weightlessness, pull of gravity, and even the hair on my arms fell like it was being tussled about by the wind. However, I was still concious of what my body was doing in my bed, and it was going crazy! My whole body was tingling all over, especially in my arms and legs. I also felt these 'centers' , if you will, of energy (for lack of a better term) in my palms and stomach. After I awoke, there were some post waking images (iconic almost) that were unrelated to my dream. A few blinks and they disapeared.

So, what did I do? What is it called, and does any have a technical explanation for the experiences?