I need a seat recommendation. I have always been 15A on my 747 flights, but had to do a last minute flight to NRT. On the return, both 15B and 16A are open. It leaves at 4:30pm, arrives at 9:30am, so clearly is a sleeper flight.

Which seat would you go for? I know 16A has the great side bins, but I am guessing it will be impossible to get out of in the middle of the flight when everyone is reclined and asleep. I plan to try to sleep, but the bathroom does call me about every 3 hours or so!