Hi,
Are you asking about staying at AKL in a regular room and upgrading for the one night in concierge?
Or
Staying somewhere else and just coming to AKL concierge for one night?
If you are coming to AKL for one night only - keep in mind even concierge guests have to check out at 11:00am. So you will have to have your stuff out of the room by the time you leave for the Sunrise Safari (7am) or go straight back to the hotel after the SS to check out which is sort of a waste because you require admission to DAK to participate on the SS - so you would want to spend a bit more time in DAK following it.
Hopefully your room would be available when you check in so you can enjoy your one day/night to it's fullest.
If however you are spending the other nights at AKL in a regular room, you can keep the same room and upgrade to concierge by having them add the lounge access to your card - and you stay put.. that way you don't have to change rooms.
Hope I helped and did not confuse you!
>>^..^<<