Things to Know Before Booking a Hotel in Japan: 11 Questions
Before booking a hotel in Japan: child-sharing fees, room size, laundry, luggage, lockers and late arrivals, with real yen prices and checked dates.
This guide is not another list of hotels — it answers the questions that come up after you have already picked one, which is where most confusion about booking a hotel in Japan actually starts. The single biggest surprise for first-time visitors: a Japanese hotel room is priced and booked by declared occupancy — the number of people the room is licensed to sleep — not by how many beds you can see in a photo. A young child sleeping in a parent's bed is usually free and simply left off the booking, but at least one major chain charges for co-sleeping itself: Dormy Inn, from ¥3,000 a night for a child aged three through elementary school (checked August 2026). The one condition that changes every answer below: whether your child is still under the property's free-sharing age.
What this guide is not
This page assumes you already know roughly which city and which type of property you want. For that decision — area, district, or a ryokan versus a hotel — our guide to choosing where to stay in Japan covers it in full, and how the main Japanese hotel chains differ covers the brands. What follows starts after that choice: the procedures, fees and customs that only show up once you are looking at an actual room.
Four questions to settle before you press book
Four questions decide whether the room you are about to book actually works for your trip, and each one links to the full answer below.
| Question | The short answer | Where the detail is |
|---|---|---|
| How many people may legally sleep in this room? | The room's declared occupancy, not its bed count — a "twin" room can be licensed for two even with a child sharing the frame. | Why hotels count people, not beds |
| Will my child be charged? | Usually free up to a stated age if they share your bed; a separate futon or bed is usually charged at most chains. | Child-sharing ages and fees, chain by chain |
| Is the room big enough in m²? | Read the floor area and the bed width in centimetres, not the room's name — "double" and "compact" mean different things at different chains. | How to read a room's floor area |
| Can I do laundry without leaving the room? | Only at chains that build a washer-dryer into the room itself — a hotel's shared coin laundry usually has a queue. | Which hotels have an in-room washing machine |
Travelling with children
Three questions about children come up before almost every Japan booking that involves a family: how the bed works, how the bath works, and whether the kitchen can handle an allergy.
A Japanese hotel prices a child by whether they need their own bedding, not by age alone — except at one chain, which prices the shared bed itself. Of the five major chains checked for this guide — APA Hotel, Dormy Inn, Keio Plaza Hotel Tokyo, MIMARU and Tokyu Stay — four publish an English-language policy letting a child under the chain's own free-sharing age (preschool age at APA Hotel and Tokyu Stay, 5 at Keio Plaza Hotel Tokyo, 6 at MIMARU) share an adult's bed free. Dormy Inn's policy is documented only in Japanese, and it works differently: co-sleeping is free for ages 0 to 2, charged at ¥3,000 a night per bed for ages 3 through elementary school, and billed at the full adult rate from junior-high age (checked August 2026). Why Japanese hotels ask you to share a bed with your child has the ages, fees and bed widths chain by chain.
Getting a young child into a hot-spring bath is less about permission and more about which bath. Public bathing areas are split by sex under rules that vary by prefecture, and a child still in nappies is rarely welcome in a shared bath at all, which is why a room with its own tub or a reservable private bath is usually the practical answer. Onsen with kids in Japan walks through the age lines and how a private bath is actually booked.
A food allergy is easier to manage in Japan than most first-time visitors expect, provided the property hears about it before the kitchen starts cooking. A ryokan serving a fixed kaiseki menu can often substitute with a few days' notice; a buffet breakfast usually cannot change anything and will point you at the ingredient labels instead. Food allergies in Japan with kids has the request template in English and Japanese.
The practical ones: laundry, luggage and lockers
Three practical questions rarely make a hotel review but decide whether a longer stay in Japan is comfortable: laundry, luggage and lockers.
A hotel's shared coin laundry is often exactly where you want it at the exact time everyone else does too, which is the whole case for a room with its own washer. Which hotels in Japan have a washing machine in the room? covers the chains that build one in.
Sending a suitcase ahead is normal in Japan and runs on two separate systems: a nationwide courier booked at any front desk, and a handful of hotel groups that move bags directly between their own properties the same day. Can I send my luggage between hotels in Japan? covers both, with real drop-off and pickup times for one Kyoto group service.
Coin lockers fill from the ticket gates outward, so the ones a tired traveller finds first are the ones most likely to already be full. What if the coin lockers are full in Japan? covers what to try next, in the order that actually works.
The bath
Two questions about Japan's communal baths come up more than any other, and they have different answers. Whether a child can join a shared bath depends on their age and the prefecture's own rule, covered in full in our onsen-with-kids guide above.
Whether a visible tattoo will get you turned away depends on the individual facility, not on a national law — some ban tattoos outright, some allow them under a cover patch of a stated size, and a growing number publish no policy at all, which in practice means asking first. Onsen and tattoos in Japan covers how common a refusal actually is and where a private bath sidesteps the question entirely.
Eating: allergies, vegan and halal
Allergies aside, the harder constraint in Japan is often diet rather than medical risk: most Japanese vegetable dishes are seasoned with dashi made from dried bonito or sardine, so a plate that looks entirely plant-based is usually neither vegan nor halal. Vegan and halal food in Japan: why the dashi is the problem explains where it hides and the words that get a kitchen to actually change it; food allergies in Japan with kids covers the request itself.
When the plan breaks: arriving after midnight, and a cancelled flight
A city business hotel with a 24-hour desk will usually let you check in whenever you arrive; a small ryokan or guesthouse desk typically closes for the night, often between 22:00 and 23:00. If you say nothing, a hotel that was expecting you earlier will often call to check — one phone call before your last train saves both of you the conversation. Can I check in after midnight at a hotel in Japan? covers what to say, and how Japan writes a 1am check-in as "25:00" on a confirmation.
A cancelled domestic flight turns an ordinary evening into a room hunt, and the airport hotels sell out faster than an airline counter queue moves. Flight cancelled in Japan? Book a hotel before you queue sets out the order to do things in: book a room first, rebook the flight second, join the counter only if you still have to.
What we have used ourselves, and what we have not
Some of this comes from our own bookings, and some does not, and the difference matters enough to say plainly. We have used the Mitsui Garden Hotels Kyoto group's inter-hotel baggage service, stayed in a room with its own washing machine at Tokyu Stay, walked further into Kyoto Station to find a coin locker with space, taken an unplanned airport-hotel night after a domestic flight was cancelled, and asked a hotel kitchen about a food allergy and had it accommodated. We have not used an airport-to-hotel delivery service, and no one in our circle has a tattoo, so the airport-delivery section of our luggage guide and all of our tattoo article are written from published rules only, not experience.
Once these are settled, where to stay
Once the questions above are settled, these four properties are evidence that the conditions above can be met — not a ranked recommendation.
| Property | Why it is here | Read more | |
|---|---|---|---|
| MIMARU Tokyo Shinjuku West | Apartment-style rooms with a declared occupancy of four to six depending on the layout — the shape most families in this guide are looking for. | Tokyo rooms that legally sleep five | check rates |
| Tokyu Stay Nishi-Shinjuku | A washer-dryer built into the room as the chain's defining feature, a 2-min walk from Nishi-Shinjuku-Gochome Station. | How the three Tokyu brands differ | check rates |
| Mitsui Garden Hotel Kyoto Station | The station-front hotel behind the inter-hotel baggage service, a 3-min walk from JR Kyoto Station's Central Gate. | Hotels at Kyoto Station | check rates |
| Hotel Villa Fontaine Grand Haneda Airport | Connected to Haneda's Terminal 3 by an indoor walkway — the room to have booked before a delayed or cancelled last flight. | Airport rooms at Narita and Haneda | check rates |
One question belongs before all of these, because it is the one most often answered wrong: which bed you are actually booking. Twin vs Hollywood twin vs double in Japanese hotels explains why a Japanese double is narrower than a US queen.
FAQ: booking a hotel in Japan
Do Japanese hotels charge extra if my child shares our bed?
It depends on the chain. Most — APA Hotel, Tokyu Stay, Keio Plaza Hotel Tokyo and MIMARU — let a child under their own free-sharing age (preschool age up to age 6, depending on the chain) share an adult's bed for free, and only charge once the child is old enough to need separate bedding. Dormy Inn is the exception: it charges for the shared bed itself, not just for separate bedding — free for ages 0 to 2, ¥3,000 a night per bed for ages 3 through elementary school, and the full adult rate from junior-high age (checked August 2026).
Can I get a hotel room in Japan with my own washing machine?
Yes — Tokyu Stay builds a washer-dryer into every room as the chain's defining feature, and several apartment-style hotels do the same. A hotel's shared coin laundry works too, but it is often occupied in the evening, which is exactly when most travellers want it.
What should I do if the coin lockers are full when I arrive in Japan?
Walk further into the station before giving up — lockers near the ticket gates fill first, and banks five to ten minutes further in often still have space. If none are free, a staffed baggage counter or asking your hotel to hold the bag before check-in are the reliable fallbacks.
What happens if my flight to Japan is cancelled and I need a hotel that night?
Book a room from your phone before you join the airline's rebooking queue — airport hotel rooms sell out faster than the queue moves on a cancellation night. Most Japanese domestic carriers rebook the flight itself but do not arrange or pay for a hotel when the cancellation is weather-related.
