The guy at Nintendo said the fan still runs in sleep mode and needs to draw in air to keep the system cool. Whether that is at a lower rpm who knows but I'm not doubting him. The reason I contacted him was because I have tried it myself and after an hour of being in the case, my case became extremely warm and I wondered what the reason for the thermal transfer was. The system draws in from the front and expels warm air from the rear. But if you want to play russian roulette with that theory of yours then who am I to stop you. I'd rather listen to official advice.
