Privacy, hell no. But we slept for 10 hours and the lady with the washroom phobia who wouldn't take the isle (she was stuck between wife and son) slept even longer.
As to why they serve a full dinner at 1am PST??? We were out cold but I do remember the cranky FA trying to wake my wife up for dinner even though we told the nice FA that we were going to sleep and would eat later!! Had the same FA on the way back too! She seemed nicer, but we didn't get our x2 seats by the window even though I selected them. But we were on time, my wife came back on AC34 which was 4hrs late.