When you go to the cockpit there is a sliding door on your right, just before the cockpit door. That's the cockpit crew rest (on our Sabena A340). The equipment of that crew rest is a little bit different for A340-200 and A340-300, but mainly it looks the same : two "beds". The cabin crew rest loks like a "cargo container" placed in the forward part of the lower aft cargo compartment. You can access it from the cabin via a door and a stair situated near the door 3 left (behind the wings). The LDMR (Lower Deck Mobile Crew Rest) has 7 bunks . We have this also on our A-330-200.
Hope this helps ...
Sabena ... Never to be forgotten (12 years already , what a shame !! )