I have read numerous reports of a hotel inside the international terminal building for intl to intl connections. Is that still the case? I have a 16-hour connecting between Air India business class flights, and there's even a note on AI's lounge info page that you can only use it for three hours before the flight although I doubt that is enforced for transit pax. Just looking for a comfy place to relax. Maybe the Singapore or LH lounges have nap rooms?