Saunas have become hugely popular in Japan in recent years. Bathhouses and sauna facilities are busier than ever, and a whole vocabulary has grown up around the ritual. If you are visiting Osaka with friends, family or a partner, there is another way to enjoy it: stay somewhere the sauna belongs only to you.
This guide covers what Japanese sauna fans mean by "totonou", the etiquette worth knowing, and the two ICON HOTEL stays in Osaka that come with their own private sauna.
What "totonou" means
Ask a Japanese sauna lover why they go and you will almost certainly hear the word totonou (整う). It means something like "to be put in order", and it describes the calm, light, deeply relaxed state that comes after a few rounds of heat and cooling. The routine behind it is simple:
- Heat. Sit in the sauna until you feel properly warm. There is no target time — everyone is different.
- Cool. Rinse off with cool water to bring your body temperature down.
- Rest. Sit or lie down somewhere comfortable, ideally in the open air, and let your breathing slow. Most fans say this quiet rest is where the totonou feeling arrives.
People usually repeat the cycle two or three times. Drink plenty of water before and after, and stop whenever your body tells you to.
Sauna etiquette in Japan
Public saunas in Japan have a few unwritten rules. They are good habits in a private sauna too:
- Wash first. Showering before you go in is expected everywhere.
- Sit on a towel, and rinse off sweat before you get into any shared water.
- Keep it quiet. Saunas are treated as places to switch off.
- No sauna after drinking. Alcohol and high heat do not mix — save the beer for afterwards.
- Take breaks. If you feel dizzy, step out, cool down and sit.
Public facilities are usually separated by gender, which is one reason a private sauna appeals to couples, families and mixed groups of friends: you can all go in together, on your own schedule, and walk straight from the sauna into your own living room.
MIST: an outdoor sauna and Japanese garden near Shinsekai
MIST is a whole house about four minutes on foot from Dobutsuen-mae Station, a few streets from Shinsekai and Tsutenkaku Tower. Its outdoor sauna is electric. Right next to it is a private shower for the cooling stage, and a private Japanese garden for the rest — totonou in the open air. You rent the entire house with no shared spaces, so the sauna and the garden are never shared with other guests.
After the sauna, the evening continues indoors: the tatami room has a projector for movie nights, and the full kitchen includes a takoyaki hot plate and a rice cooker. MIST sleeps up to eight — two double beds upstairs and two double futons in the tatami room. How to use the sauna is explained in the check-in details we send before arrival by email or LINE.
The neighbourhood is lively, local Osaka, with izakayas and markets right outside. Shinsekai, Tsutenkaku, Spa World and Tennoji Zoo are all a short walk away, Tennoji is about five minutes and Namba about ten.
See MIST · Check dates for MIST
PUFF: a private sauna two minutes from Shinsaibashi
PUFF takes up the 2nd and 3rd floors of a townhouse in Minamisemba, about 2 minutes on foot from Shinsaibashi Station. The private sauna is on the 3rd floor, along with a big-screen projector, a queen bed and a double sofa-bed. The 2nd floor has a tatami room with two double futons, the kitchen and a washer/dryer. There is a shower and toilet on each floor — two in total — which makes a real difference when up to eight people share.
Two practical notes: PUFF is reached by stairs only (there is no elevator), and the building entrance can be a little tricky to find, so we send photo directions before you arrive.
Choose PUFF if you want your sauna right in the centre. Shinsaibashi's shopping streets and Dotonbori are on foot, and Namba and Tennoji are minutes away. The street itself is a quiet office district — busy by day, peaceful at night.
Which area suits you?
- Near Shinsekai and Tennoji — MIST. A whole house with a garden to cool down in, in a down-to-earth part of the city with Tennoji Park close by. Best for groups who want a home of their own.
- Shinsaibashi — PUFF. The heart of Osaka's shopping, food and nightlife, with a sauna two floors above it all. Best for groups who want to walk everywhere.
Both sleep up to eight. You can compare them, along with our sauna stays outside Osaka, on our private sauna stays page.
Booking
Book direct on iconhotel.jp for 10% off the room rate — the discount is applied automatically, and you can see the full price, cleaning and tax included, before you pay.
