Well actually SQ998 it's pretty good. I know you arrived from BKK around 19:35. You are full from your dinner on board. Well you can relax and surf the internet at SKL and drink more Dom. After 9pm or later starts to snack. Board early. Ask for PJs. And tell the FA once airborne you want the bed to be made up, and do tell that you want to have breakfast.
So the BTC is not necessary. And yet still you are enjoying the F.