I will admit to similar thoughts; especially after I've been involved actively in the forum some days and have read many of your posts. The mind wanders as sleep approaches.
I'm fortunate in one way. I manage to cover a few of my fantasies in my writing. I won't say which, as the stories have covered many. I know which ones are mine and I guess the perceptive reader would notice that some are covered in more depth that others as they are things that have occupied a lot of my thinking time. The others are created to fit the scene/story/characters and lack some of the depth.