We all have them, lets share them XDD.
Here is mine - and I would say I have it at least twice a month!
My grandparents built their home instead of buying one, and while the work was going on they lived in a trailer on the edge of their land. In my dream I'm in that trailer relaxing on the couch and I look at the calendar and my wedding is in a few hours! I go outside and everyone is sitting in reclining beach chairs in the overgrown/weedy grass. I'm wearing a denim overall dress (similar to one I had when I was about 10) with no shoes and I realize I don't have a boquet. My grandmother goes to the random flower bearing tree and breaks off a branch and hands it to me. The reception (on the other side of the trailer) is a long plastic folding table with one tealight sitting on a leaf at each end loaded with subway party platters and no drinks.
I usually don't even sleep through the entire thing LOL!