Wow, search function works!
I had the same question, except my layover is only going to be 8 hours. I'll probably end up sleeping at the transit hotel (are there any other hotels at the airport? The transit hotel looks kind of motel 6 ish) in SIN and won't be needing my luggage. Glad to know it won't be an issue (I just hope it doesn't get lost!

)
So the next morning, I have a SQ flight to BKK
and then connecting to TG at BKK to HKT.
Will SQ be able to check my bag all the way to HKT on TG, which is my final destionation (or check me in for that matter)? Or will I have to claim my luggage at BKK and recheck in for TG?