Wake from sleep using INT0

while(1)
     {
		for(ucb=0;ucb<100;ucb++)  // Just some led displaying stuff
		 {						
			uca +=1; uca &=0x01F;
			BrtData[0]=uca;
			Delay10KTCYx(10 );
		 }
		INTCONbits.GIE=0;		// Should be off just wake from sleep
		LATB=0x00;				// Turn off Leds
		LATA|=0x0F;				// common Anodes off
		Delay10KTCYx(250 );		// Just to check
		TRISB = 0x01;			// Bit 0 input for INT0
		INTCONbits.INT0IF = 0;  // Must be off prior to enable INT0
		INTCON2bits.INTEDG0=1;  // Enable Rising edge
		INTCONbits.INT0IE=1;	// Enable INT0 interrupt
		Sleep();
		Nop();
		TRISB=0;				// Back to normal
		INTCONbits.INT0IE=0;	// Disable INT0 interrupt
		INTCONbits.GIE=1;		// Back on

	 }