J. Edward - Thanks for the link. It appears that as a SkyTeam+, I should have access to the KE and AF lounges--at least until October 24th. Neither are open all night so likely getting a hotel might be a more ideal option. There is a pay-in lounge that has 24-hour access that might be an option for travellers in a similar situation. 10-hours costs up to 800HKD and incrementally less for shorter time periods.

Also, thanks WWD.

Morning Calm Lounge:
Korean Air (KE)

Hours: 9:45 - 14:00, 20:20 - 00:45


Dragon Air Lounge:
Royal Brunei Airlines (BI)
Continental Airlines (CO)
Continental Micronesia (CS)
Dragonair (KA)
Asiana Airlines (OZ)

Hours: 6:00 - Last Flight


L'espace:
Air France (AF)
KLM Royal Dutch Airlines (KL)
All Nippon Airways (NH)
Pakistan International Airlines (PK)

Hours: 7:10 - 10:20, 12:10 - 15:10, 17:00 - 23:35