Take the intra terminal (any green bus) to terminal 2. Walk past the ticket counters into the terminal. In the pre security squartundrum to the right there is usually a table to lie on in front of the security employee door. Best shot of good night sleep. Only 1-3 flights arrive between 12 am-5am and security is manned all night and will be a deterrent against hoodlums, thiefs, etc.