Tokyo Hotels for a Family of 8: Room Capacity, How Kids Are Counted, and Getting to the Fun

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Summary: Three Tokyo hotels for a family of eight (two adults, six kids from age 1 to 15), compared only on what the official websites state: room capacity, how each hotel counts children, and how far the room is from Tokyo Station and the places kids want to go.

Who this is for

Families visiting Japan with kids of different ages. The model household here is two adults plus a baby or toddler (1), a preschooler (5), two elementary-age children (7 and 10) and two teenagers (12 and 14). You arrive at Tokyo Station by Shinkansen or Narita Express and move around by train, not by car. This is a research-based comparison built from official pages. It is not a review of a stay.

Conclusion: find out how each hotel counts a child before you count rooms

Most booking sites show almost nothing when you type “8 guests”. That does not mean nothing exists. The problem is that each hotel counts children differently, and the search box does not know that.

MIMARU, a chain of apartment hotels with a kitchen in every room, states in its official FAQ that children aged 6 and under are not counted toward room occupancy, up to two per room, while children aged 7 and over count as adults. For the family above, the 1-year-old and 5-year-old are not counted and the four older kids are adults. Search MIMARU as “6 adults + 2 children”. At MIMARU Tokyo STATION EAST, the 2-Bedroom Family Suite (53 m², 6 adults / 2 children) matches exactly, and the Connecting 2-Bedroom (82 m², 8 adults / 4 children, eight single beds) gives everyone their own bed. MIMARU Tokyo UENO EAST has a Connecting Japanese-style room (78 m², 8 adults / 4 children) with six single beds and two futons.

Hotel Emion Tokyo Bay, near Tokyo Disney Resort, tops out at 6 guests per room (Family 6 and Japanese-Western Room Type B). Its room pages do not state a co-sleeping policy for infants, so plan on two rooms and confirm the infant rule before booking.

Suitability by age

Hotel	Baby / toddler	Elementary-age child	Teenager
MIMARU Tokyo STATION EAST	Very good. Two under-7s not counted, free crib for under-2s, kitchen for formula and baby food	Very good. Bunk-bed rooms, induction cooktop for simple meals, Hamacho Park playground a short subway ride away	Good. Two-bedroom layouts give older kids a separate room. No teen-specific facilities listed
MIMARU Tokyo UENO EAST	Very good. Japanese-style apartment has a tatami floor with two futons, 3-minute walk from JR Ueno Station	Very good. Ueno Zoo and the museums of Ueno Park are within walking distance. A Pokémon-themed room exists (4 adults / 2 children)	Good. The connecting Japanese-style room is effectively two rooms
Hotel Emion Tokyo Bay	Fair. Three futons in Japanese-Western Room B, but no official co-sleeping rule	Very good. Free shuttle to Tokyo Disney Resort in about 15 minutes, kids’ step stool in Family 6	Very good. Family 6 separates the living room from the bedroom and has four beds plus two extra beds

Official details side by side

Item	MIMARU Tokyo STATION EAST	MIMARU Tokyo UENO EAST	Hotel Emion Tokyo Bay
Nearest station	Hatchobori: Hibiya Line exit A4 (2 min walk), JR Keiyo Line exit B1 (4 min walk)	JR Ueno Station Iriya exit (3 min), Ginza/Hibiya Line Ueno exit 1 (5 min)	JR Keiyo/Musashino Line Shin-Urayasu, about 7 min walk (about 4 min by local bus)
Largest room for 8	Connecting 2-Bedroom, 82 m², 8 adults / 4 children, 8 single beds	Connecting Japanese-style, 78 m², 8 adults / 4 children, 6 singles + 2 futons	None. Maximum is 6: Family 6 (67 m²) and Japanese-Western Room B (60 m²)
Room that fits exactly	2-Bedroom Family Suite 53 m² or 2-Bedroom Family Apartment 47 m² (6 adults / 2 children, 4 singles + 1 bunk bed)	Standard rooms are 4 adults / 2 children, so two rooms	Two rooms, e.g. Room B (4 to 6) plus Room A (57 m², 4 to 5)
How children are counted	Aged 6 and under: up to 2 per room not counted. Aged 7 and over: counted as adults (official FAQ)		Not stated on room pages
Bedding	Single beds and bunk beds. Suites have an in-room washer-dryer	Japanese-style apartment: 2 singles + 2 futons on tatami	Room B: 2 beds + 1 extra bed + 3 futons. Family 6: 4 beds + 2 extra beds
Kitchen and meals	Induction cooktop, dishes, cutlery, fridge, microwave in every room. No meal service listed		Meal format not stated on room pages
Baby equipment	Free crib (under 2) and bed guard. No stroller rental listed		Not stated
Check-in	15:00, check-out 11:00 (FAQ)		Not stated
Parking	No hotel parking; nearby paid lots		Capacity and fee not stated on access page
Kids’ destinations nearby	Hamacho Park (Hibiya Line toward Ningyocho), Tokyo Station, Nihonbashi	Ueno Zoo, National Museum of Nature and Science (Ueno Park)	Tokyo Disney Resort by free guest-only shuttle, about 15 min, no reservation

Working out the room split

MIMARU (both locations): search as 6 adults + 2 children. For one room, choose the Connecting 2-Bedroom at STATION EAST (eight singles) or the Connecting Japanese-style room at UENO EAST (six singles plus two futons). Both give all eight people their own bedding, so no one has to share with the baby. The 2-Bedroom Family Suite at STATION EAST fits the headcount but has six sleeping places (four singles plus one bunk bed), so the 1-year-old and 5-year-old would share with adults. Cribs for under-2s are free but limited, so request one when you book.

Hotel Emion Tokyo Bay: rooms stop at six guests, so eight people need two rooms. One workable pattern is Japanese-Western Room B (4 to 6 guests, three futons) with the 1-, 5- and 7-year-old and one adult, and Japanese-Western Room A (4 to 5 guests) with the other adult and the three older kids. Whether the two rooms can be adjacent is not stated officially, so ask when booking.

We do not compare prices here. Rates change daily. Use the room names above to open each booking page and compare the same dates yourself.

Getting there with a stroller and luggage

Time	Day you choose MIMARU Tokyo STATION EAST	Buffer
11:30	Arrive Tokyo Station. Walk to the Keiyo Line platform, which is a long way from the Shinkansen platforms. Allow extra time with a stroller and suitcases	20 min or more
12:15	Hatchobori, one stop on the Keiyo Line. Exit B1, 4 min walk. Ask the hotel to hold luggage before check-in (confirm in advance)	—
12:30	Hibiya Line to Ningyocho. Buy ningyo-yaki (small sponge cakes with sweet bean filling) at Shigemori Eishindo, a shop with a history of more than 100 years, then lunch nearby	60 min for lunch
14:00	Hamacho Park playground: swings, slides, jungle gym, sandpit, combination play structure, seesaw. Older kids rest on the grass	Baby naps in a carrier
15:30	Back to the hotel for check-in (from 15:00). Cook in the kitchen or shop for dinner	90 min in the room
Rain	Swap the park for ASOBono, an indoor play facility at Tokyo Dome City with a nursing room, diaper station and hot water. No food inside except baby food	Last entry 70 min before closing

If you choose UENO EAST, take JR from Tokyo Station to Ueno and leave by the Iriya exit, 3 minutes on foot. Ueno Zoo is walkable from the hotel. We could not retrieve the zoo’s official hours and fees for this article, so check them before you go. If you choose Emion, take the Keiyo Line from Tokyo Station to Shin-Urayasu and walk about 7 minutes. The Disney shuttle is free for hotel guests and takes about 15 minutes.

Shortcut: if the kids are worn out after the train, skip Ningyocho and the park, leave bags at the hotel, wait in the station shops until 15:00 check-in, and stay in for the evening. Another split: the two teenagers go to Ningyocho alone while one adult stays at the hotel with the younger kids.

Practical notes for visitors from abroad

Tickets and IC cards. The Keiyo and Hibiya Lines are run by different companies (JR East and Tokyo Metro). A rechargeable IC card such as Suica or PASMO works on both, so you avoid buying separate paper tickets for eight people at each transfer. Children aged 6 to 11 usually ride at child fare, but check the current rules for each operator before you buy.
Luggage. Elevators exist at the stations named above, but the Keiyo Line platform at Tokyo Station is a long underground walk. If you have more than one suitcase per adult, consider sending large bags ahead by courier from the airport.
Shoes off. The Japanese-style rooms at UENO EAST and Emion have tatami floors. You remove shoes at the entrance. Futons are laid directly on the tatami, which many parents find easier for babies than a Western bed.
Co-sleeping and child rates. In Japan, “child not counted” and “free co-sleeping” are two different things. MIMARU states the counting rule clearly. Emion does not, so ask by email before you book.
Cooking. MIMARU rooms have an induction cooktop, not gas. Supermarkets and convenience stores sell rice, eggs and pre-cut vegetables, and baby food in pouches is widely available.
Mobile data. You will be checking train times and maps constantly with eight people. Get a Japan eSIM for your trip before you land so the phones work from the first train.

Local food: ningyo-yaki from Shigemori Eishindo

Shigemori Eishindo in Ningyocho describes itself on its official site as a shop that has carried on the old downtown atmosphere for more than 100 years. Its signature products are ningyo-yaki and zeitaku senbei rice crackers. The main shop is at 2-1-1 Nihonbashi Ningyocho, Chuo-ku, on the Hibiya Line route from STATION EAST. Opening hours and closing days are not listed on the site and popular items can sell out, so treat it as a bonus stop rather than a plan.

Often-missed local spot: Hamacho Park

According to Chuo City’s official page, Hamacho Park is one of the largest ward parks at about 47,000 m². The playground has swings, slides, a jungle gym, a sandpit, a combination play structure, a seesaw, horizontal bars, spring riders and a basketball hoop, with a gently rolling lawn on the south side. The address is 2-59-1 Nihonbashi Hamacho. The page does not mention diaper-changing tables or a nursing room.

Quick reference for parents

Item	Confirmed officially	Not confirmed / caution
Stroller	No stroller rental listed at any of the three hotels. Bring your own	Step-free routes inside each hotel not described
Nursing and diapers	MIMARU: free crib under 2. ASOBono: nursing room, diaper table, hot water	In-hotel nursing rooms and Hamacho Park diaper tables not listed
Toilets	Hotel lobbies, ASOBono baby room	Accessible toilets at Hamacho Park not listed
Naps	MIMARU check-in 15:00. Carrier nap in the park from 13:00, proper nap in the room after 15:00	Emion check-in time not stated
Meals and allergies	MIMARU rooms have a full kitchen, so you control ingredients	No hotel lists allergy policies or seating for eight. Tell them when booking
Rain	ASOBono (no food inside except baby food; re-entry only with a child’s full-day pass). MIMARU rooms are large enough to stay in	ASOBono fees and age range not retrieved

Who each hotel suits, and who it does not

MIMARU suits families who want all eight people in one room, want to cook for allergies or picky eaters, and have kids who settle better with bunk beds or tatami. It does not suit families who want breakfast included, expect a large bath or pool, or need hotel parking (none).

Emion Tokyo Bay suits families whose trip is centered on Tokyo Disney Resort and who value the free shuttle and futon rooms. It does not suit families who need one room for eight (maximum six), who cannot book without a clear infant rule, or who plan to go into central Tokyo every day (the Keiyo Line trip repeats each time).

Re-check before you book

MIMARU’s counting rule (6 and under not counted up to 2 per room, 7 and over as adults), availability of the 82 m² and 78 m² connecting rooms, and crib stock
Emion Tokyo Bay’s infant co-sleeping rule, child rates, whether two rooms can be adjacent, check-in time and parking
Shigemori Eishindo opening hours and closing days
ASOBono fees, age range and hours (10:00 to 18:00 was shown on the date checked)
Ueno Zoo hours, closing days and admission
Train times and fares from Tokyo Station to Hatchobori, Ueno and Shin-Urayasu (not stated in this article)

FAQ

Q. Is there a Tokyo hotel room for eight people?
A. Yes, on official capacity: the Connecting 2-Bedroom at MIMARU Tokyo STATION EAST and the Connecting Japanese-style room at MIMARU Tokyo UENO EAST are each listed at 8 adults / 4 children.

Q. Do the 1-year-old and 5-year-old count as guests?
A. Not at MIMARU, up to two children aged 6 and under per room. Emion’s room pages do not say, so ask the hotel.

Q. Can we rent a car instead?
A. MIMARU has no hotel parking and Emion does not list parking details. This article assumes trains.

Q. What about a rainy day?
A. ASOBono at Tokyo Dome City is indoors and has a nursing room, diaper station and hot water. Eat before or after, since only baby food is allowed inside.

Sources and date checked

All details were checked on October 23, 2026 on the official pages below. Prices, hours and closing days change, so verify before booking.