For a spell like 'Sleep,' to make the code more fitting to the RP setting of the MUD, it would be neat to see a successful casting of it have a freeze that doesn't allow them to do anything, and some lag time with a message like, "You begin to feel drowsy." then an echo right before you sleep like, "With a yawn you decide it is a good time to get some rest..."
If other things were made like this, I think it would add an entirely new RP oriented uniqueness to the noncombat spells of this MUD.
Natasha