so i wrote about this idea in an old 'afk avatar states' thread, but ended up just fueling more love for the afk thing, which, okay *is* really cool! but hey... glitch dream zones!
these would be accessed by going home (or to your campsite, subway station sleeping locker, etc) and interacting with a bed (/tent/tatami mat/etc).
you could take a short nap, a good night's sleep or even an extended hibernation. you'd do this when you're going to be afk or unable to play for some time, and upon your return, a special dream area/quest/mini-game is unlocked.
this would be fun because a) a glitch dream zone would be awesome, and b) it would provide an incentive to step away from the game and get some sleep or fresh air or whatever ;)
the zones could be the dreams of different giants. whereas the world is a collective imagining, these areas would allow you to interact with places that reflect individual giants' personalities.
maybe an associated skill path could be dream walking. early levels of this skill allow you to access the dream zones for short times or in less of an interactive way, or maybe just more basic dreams, while higher levels of the skill allow you to spend more time in the dream, or offer more interactive and vividly detailed dreams.
in closing, i would just like to say, glitch dream zones! :)