I haven't been to GRU in several years, so am unfamiliar with T3. I'm transiting from QR (2am arrival) to SQ (17:50 departure). I'm hoping to print the SQ boarding pass in advance (looks like that's possible for GRU departures) and will just have carry on.
I'm planning to book a room at the Tryp - does anyone know whether it's as easy as "walk off one plane, check in to hotel, walk back out to next lounge/plane"?