I daydream about Dressing several times a day, and about 4-5 times a month I'll have fairly vivid dreams. Some of the dreams are sexual in nature, but not all.
Like many people, I occasionally have nightmares about being naked in public, sometimes just from the waist down, but invariably in those dreams I am presenting in my male persona. I wonder what a psychiatrist might read into that?
We almost instantly forget about 90% of the dreams we have, and according to studies, dreams are seldom about themselves. In other words, if you dream about Dressing that's not what the dream is actually about, but if you dream about riding in the Tour de France that might somehow be about crossdressing. The brain is a weird place!