14 hour layover - Airport Transit Hotel and requirements

We are travelling Delhi-Brisbane with China Southern Airlines and have a 14 hour layover. Do you have a transit hotel at hourly rate? (arriving 6.30 am departing 9.10pm). Bags will be checked all the way through to Brisbane (we hope) and so only need to go to room to rest with onboard baggage.
If we want to stay at Pullman do we need to exit Airport and if so can we get a pass on arrival to enable us to go to hotel?