Question making the game not always go to sleep when no players are connected

Hi, I was wondering if there could be a code change to make the mud not go to sleep when players disconnect as I think that having mobs still be populated in zones and the world continue to run sounds like what this game should do?  Making a configuration option both in the config.c file and the normal configuration file would be nice for those people who want the game to go to sleep like normal.  What are your thoughts about this and could it be added?

The system is at is because it saves on cpu usage; after all, it was conceived in a time where each cpu cycle was expensive. A MUD is not a resource intensive application, so it makes sense to make this toggleable.
Is it a general request? Anyone else who wants this?

Edit: what is this going to achieve for the players?