Flying on the CX-leased 77W from DOH to HKG in May.
I can either select a first row J center seat (11G) with the the other center seat still unoccupied (probably not by the time of the flight) or any window seat in the bigger cabin.

It will be a night flight departing around 1:45AM so want to maximize sleep early-on (first 4 hours) and then wake up the remainder of the flight to avoid some jetlag. How's the privacy on these center seats versus the window seats and is the larger cabin that much noisier? Worried about the trade-off of privacy vs noise but unsure what the experience is on this plane...

Any suggestions or experiences?