Yep....I've had lucid dreams too. I can remember waking up many times through the night and each time going back to the same dream where I left off when I awoke. It's pretty interesting to me when that happens only when I get up in the morning I'm completely exhausted and feel like I haven't slept a wink....LOL.
There have also been times when I've dreamt over a period of a week or so, not every single night, but a couple of times through that week the same dream, picking it up where it left off previously. I guess it means to me that there was unfinished business to attend to??

sabby