Are you sure - from the text posted it isn't that obvious... sounds like all CW cabins on the dates / flights listed will be "quieter"? If not and as posted before, which part will be Sleeper Service?

I think what’s amusing is the level of cynicism this type of “service enhancement” generates from seasoned travellers.

The idea of a quieter cabin at night is nothing new and can be implemented easily anyway – by better timing of meals, and general guidelines to crew (not standing up in the galley chatting away with the lights on is a good start)… this goes a bit further by imposing a meal pattern and reducing choice, which may not suit all pax and clearly is designed for maximum crew use.