I'm flying SIN-SFO in a few months, and found that there are some redemption slots open for a business upgrade. I'm currently looking at: SQ16 outbound, dep SIN 09:25, arr SFO 11:15 SQ1 return, dep SFO 00:05, arr SIN 11:55 That gives me a half day in SFO to adjust and chill before my meeting, then a full day before departing at midnight to come back. In terms of upgrades, what makes most sense? This will be my first proper long-haul upgrade, so I want to enjoy it. At the moment, I can upgrade SQ16 outbound, or switch to SQ15 return and upgrade that (the standard upgrades are waitlisted for SQ1). I'm keen on the longer flying time of the SQ2/1, but arriving into SFO at 7pm on the outbound would probably mean I need to go a day earlier. Flying back on SQ15 means arriving into SIN at 1am – not great. I'm hoping I can sleep in Y on the SQ1, since it's late and I'll be tired anyway. Thoughts?