I see a flight on Silk Air from Kuching to Singapore, SQ5077 that arrives SIN at 10:20pm. This would connect to SQ 608 to ICN at 12:10pm. I assume since this is a SQ codeshare that my bags would be transferred. Would this be enough time to change planes at SIN, to get through customs, immigration, and check back in?

I might be able to get the SilkAir flight added to my Award flight if ANA will allow a codeshare for an award. I'll have to call and ask. Even if I have to buy it, it's pricing out at $69 incl. all taxes in advance.. I don't know if SilkAir charges extra to check bags.