I am arriving at BKK at 0115Hrs from ICN and leaving the next morning on a domestic flight to HKT. It seems the Novotel is the best option for some rest. It is not clear to me exactly how to get to the hotel. Is it walking distance? I seem to have read somewhere there is a tunnel to the hotel?

Also, I assume that since I am clearing immigration and customs in BKK I will need to claim my bags so I guess I may have to take them to the hotel. Or perhaps is there a way to re-check them on to HKT at that late hour of the evening? My arriving flight and continuing flight are both on TG.