We had a nice stay at Carlos’ Casa de Sintra. He was so nice to pick us up at the train station and carry our luggage. The place is at a great location in the historic center. Sintra was hot when we visited and the AC in the unit works very well to keep the room cool. The mattress was very stiff and it took us time to fall asleep on it. Also, there is a restaurant right outside the room that has an outdoor speaker playing music until 10 pm our firts night and 11.30 pm the next two nights (the restaurant closes at midnight). The music is not super loud but if you are a light sleeper bring earplugs.