Candle house is clean and comfortable. I can sure that the bedclothes will be changed when the traveller checked out. The renters will come and clean the house in the morning. Other travellers no need to concern about that.
If you want to go to Tsukiji shijo(築地市場) for sushi, you must get up early to line up at 05:00am (at least) in my experience.
I hope this helps.