Night-time is "fairy time" in the Dream:
The iron tounge of midnight hath told twelve.
Lovers, to bed; 'tis almost fairy time. (V i 349-50)
My fairy lord, this must be done with haste,
For night's swift dragons cut the clouds full fast;
And yonder shines Aurora's harbinger,
At whose approach, ghosts wandering here and there
Troop home to churchyards. (..) (III ii 278-382)
We could create day/night cycles in the moo (perhaps not in the whole moo, but in a designated area such as the forest), allowing strange things to happen at night. For instance, bots could roam the moo pouring juice of love into (sleeping?) players eyes, so that they fall in love with the first person (player or bot) they see upon waking. We could make a little quest so players could find the antidote (this is described vaguely in II i 184)
We could make a verb called dream (or sleep) that could teleport players to the forest, and allow faery adventures...