Thinking of doing a run to BKK in December which will entail staying between 8 hours to 1 day. Will be coming from the states and most likely on UA. I've never been to BKK or Thailand before. Any advice on how to spend my time and/or how to get some sleep, navigating the airport, leaving airside, immigration issues etc? I hear it's a great city to lay over in, but I have no clue where to go. Sorry for such broad questions, but gotta start somewhere. Thank you.