Singapore to Hong Kong (SIN-HKG) on Singapore Airlines 777-200 in business class
After a day in Singapore I had an onward flights through the night. Firstly to Hong Kong. Singapore Airlines has a variety of aircraft types on this route, which works out well for me because the 77W and A380 both have hefty surcharges. For such a short flight the better seat and infinitesimal chance of an op-up are not worth paying the extra for. Also the schedule worked better with this flight - the better aircraft (for seating) would have resulted in a lengthy transit at Hong Kong.
I'd hoped to get some sleep on this short flight but did not manage to. Oh well, I have several more flights over the next day or so to catch up on sleep.