If I recall correctly, there is at least a mod that let you have a different time scale in interior and exterior cells, so while 6 minutes of real time could be 3 game hours while travelling, the same time could only suppose one game hour in a dungeon. Does any of you remember any mod doing that.

The one I know is http://www.tesnexus.com/downloads/file.php?id=24649. Configurable via .ini (you can also switch off the sleep system and just use the automatic timescale function). But I think there′s another mod as well, can′t recall now.

Not sure if this was the one I was recalling, but anyway I know now that I didn't imagine this. Thanks .

Maybe one of these two?

http://www.tesnexus.com/downloads/file.php?id=27352

http://www.tesnexus.com/downloads/file.php?id=24677