Originally Posted by somuchtosee

The airline agent did tell me the transit hotel is 24hr. Also, if you really have nothing to do, you can always goto the underground floor for a sauna and shower.I have used it once when I have arrived in seoul at 4am. I found it by accident and I end up just taking a nap for a few hours but its quiet and comfy. Its about 10bucks and *really* nothing fancy but a good and cheap place to rest mostly utilized by the agents and few locals who know it exists.