I would never cut on my sleeping hours just to do a round of tourney. And I don't need to: I never do the last round since it's mostly only good for those going for ranking points. I have enough shards as it is and we can't stock more than 10 broken shards anyway.
As for your lucid dreaming thing, I'm not a fan. The few times it happened to me, my dreams turned to lucid nightmares, not enjoyable at all
Well, Lucid Dreaming is awesome hehe. If they turned into nightmares, it means your subconscious has something to tell you. You could fix issues with those lucid nightmares. I have more than 700 dreams recorded, and trust me, some are awesome, from all mundane desires, to going to space, making the earth melt, witnessing the extinction of the dinosaurs, and even aging 200 years everybody but without anyone dying (and actually it is so cool).
If you can lucid dream, don't waste your skill hehe. People pay to lucid dream. You can fix your nightmares with your current skills already, send me a PM if you want and I'll lend you a hand right here (well, in the PM hehe). I'll give you a tip or two depending of your nightmare if you want to share, and fix it, lending a hand to a fellow elvarian
Back to the 6th round topic:
I only do the 6th round for personal push, like this week, for example, otherwise, I only do until the 5th star, and the 6th for the first 9. Oh, and during pushes, I do not carter. I did not carter a single round/province this week.