Does anyone know where's a good layover place at Jakarta International Airport? And, what's the typical duration for check-in at the airport?

I think you can find around 2 hotels inside the airport and there are quite plenty of hotels around the airport's area which you can consider. For the typical check-in duration, I feel that everywhere is relatively the same(2 hrs for domestic flights and 3 hrs for international flights).

As long as it's decent (cleanliness & enough space for sleeping). Thanks for sharing!