Late arrival at Incheon, stay overnight at airport?

Hi

In a few weeks I will be going on a trip with a group of people. The problem is that I will be arriving at 11 pm the day before the rest of the group (they arrive at 6am), and I want to spend as little as possible on this stay since it%26#39;s such a short one.

I wonder if it%26#39;s possible to stay overnight at the arrival side at Incheon Airport?

If so any ideas of where might be a good spot?

Peter

PS. I already know about the http://www.sleepinginairports.com/ web page, but all of the reviews are on transit/departure stays.