For the first time, we'll be in business class for a 16 hour flight to and from IAD/HKG. Glad to have a flat bed arrangement, but no sure what to expect, plan or bring to, hopefully, get some sleep. I've read here that CX doesn't provide pj's......so I assume we bring some to sleep in, for me, something to put me to sleep (in addition to vodka), socks/slippers? to go to washroom, etc. Well, you get my drift...........hints, recommendations, no-no's would be greatly appreciated!