Yes, that happens to a lot of my dreams—the ones that stick in my memory the most. To make certain that certain interesting dreams are not forgotten, I write a detailed account of the dream on Microsoft Word. I’ve only done this for a few dreams, but I did it after I woke up, probably hours after I had the dream and I may have had another dream in between. But I remembered it so well that I was still able to type up a detailed summary of the dream and the images are still in my head as long as the text is there. Now, I have typed up some dreams and read a couple sentences I wrote and thought “what the hell?”—the memory had simply been lost forever; there was no image left. But most of the stuff I write can still be remembered with an image in my head.
What I want: a device invented some time in the future that can video-record a dream. There are so many dreams I’d love to “watch”. So many interesting actions, scenes, landscapes, buildings, events, emotions, feelings…I’d love to experience them again, even if it was just seeing it from a detached point of few.