Dreaming write

Some concepts made on other blogs and their comments have inspired my new train of thought. Dreams. As writers we could use more time in our week and someone suggested we lose sleep. I could NEVER do that. Not a happy chappy without my sleep!! LOL
I had a lovely romance story dream last night (while sleeping blissfully - it does happen occasionally) and then I tossed and turned trying to write the thing in my head. I have had a few of these but have never taken the time to write them down straight away to see where such a plot or thought would take me.
I have often imagined some of the other genres inspiration may well come from dreams, having marveled at their inventiveness - especially in 'other world' type scenes depicted.
I am wondering if anyone else has used an actual dream scene to include in their novels. And if so, did they turn out successfully and inspire other plot paths to enhance the overall story? Or not work at all?
Annie