This has been puzzling me.
On my next long haul, I'm going to fly Premium Economy (VS) only one way.
LHR-PVG is a overnight, PVG-LHR is a day flight. I decided to fly Premium on the return, as I'm rather have the extra comfort whilst awake, than sleeping [I can sleep fine in VS Economy].
I was wondering if "one-way" trips like mine are popular, and if so, whether demand tends to be higher in Business/Premium/Equivalent for daylight, or night flights?