NWScript:

#include "nw_i0_tool"

//Send a message to all the players

//Equip players with a DMUse drowskin that can hold local variables for

//a single player.

void main()

    {

    object oPC;

    oPC = GetEnteringObject();

    SendMessageToPC(oPC,"Welcome to the World of Moubsin. Quick rules: Player vrs Player is allowed but you are encouraged to group and go through the quests. This Modules is designed for level 1 characters, you should be level 5 when you complete this module. Please dont kill the npcs unless you really have to, instead try talking to them and do a quest or two. Have fun.");

    //Tag in the next line

    if(!(HasItem(oPC, "fx_drowskin")))

        {

        // Remember that blueprint you copied? It goes in the next line

        object oItem = CreateItemOnObject("it_creitem056", oPC, 1);

        AssignCommand(oPC, ActionEquipItem(oItem, INVENTORY_SLOT_CARMOUR));

        }

    else

        {

        //Well isnt that special?

        }

}

You want to replace OnPlayerRest with

NWScript:

#include "nw_i0_tool"

void main()

{

//Set this to the number of seconds that must pass between resting periods

float fx_rest_time = 900.0;

//The next part sends a message to the player at half time so they don't

//get too worried. (Their still annoyed but now they think this is cool)

float fx_rest_halftime = (fx_rest_time / 2.0);

    // yeah yeah, so If someone is attacked while resting

    // and are interupted then they cant rest again. Add all

    // that stuff if you like. I tell my players to make sure

    // you rest when its safe.

    if (GetLastRestEventType() == REST_EVENTTYPE_REST_STARTED)

    {

    object oPC = GetLastPCRested();

    // Make sure the PC speaker has these items in their inventory

    // THIS is the TAG of your item. This function is in Bios Include

    // so dont forget it.

    if(HasItem(oPC, "fx_drowskin"))

        {

        //Tag on the next line

        if (GetLocalInt(GetItemPossessedBy(oPC, "fx_drowskin"), "CanRest") == 1)

            {

            //No Resting

            AssignCommand(oPC, ClearAllActions());

            //I try to give my players some direction

            SendMessageToPC(oPC, "You are too well rested to sleep now. Wait a while and try again.");

            }

        else

            {

            // Allow resting

            // I personally dont know of any performance issues when using delays.

            // Maybe someone from bioware can tell us.

            //Tag on the nextline

            SetLocalInt(GetItemPossessedBy(oPC, "fx_drowskin"), "CanRest", 1);

            DelayCommand(fx_rest_halftime, SendMessageToPC(oPC, "You are starting to feel tired."));

            DelayCommand(fx_rest_time, SendMessageToPC(oPC, "You are tired and should sleep soon."));

            DelayCommand(fx_rest_time, SetLocalInt(GetItemPossessedBy(oPC, "fx_drowskin"), "CanRest", 0));

            }

        }

    else

        {

        //No resting

        //They dont have DMUse? Better warn them.

        AssignCommand(oPC, ClearAllActions());

        SendMessageToPC(oPC, "You cannot rest ever. There is sometype of error with your character. Please log out and log in to remedy the problem");

        }

    }

}

If you come up with some other ways to do this please post em.