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Start here: pick Rest vs Stay in 60 seconds

• Decide your target checkout time first (not “how long” you want).
• Check whether today is weekday vs weekend/holiday (pricing bands change).
• Confirm the latest Rest checkout before it flips to Stay (some properties explicitly state a cutoff).
• If you arrive late, assume Stay starts at a fixed hour (often around late evening) and not “whenever you walk in.” :contentReference[oaicite:1]{index=1}
• If you might fall asleep, plan for automatic extensions (common policy). :contentReference[oaicite:2]{index=2}

Shinjuku love hotel systems (Rest / Free time / Stay / Extensions)

• Rest = short stay; commonly 1–3 hours. :contentReference[oaicite:6]{index=6}
• Free time = flat-rate daytime block; often longer on weekdays. :contentReference[oaicite:7]{index=7}
• Stay = overnight; starts at a published hour and ends at a published checkout time. :contentReference[oaicite:8]{index=8}
• Extensions = charged automatically if you exceed your plan time. :contentReference[oaicite:9]{index=9}
• Day-of-week bands matter (Sun–Thu vs Fri vs Sat/holiday). :contentReference[oaicite:10]{index=10}

Total cost in Shinjuku: what changes your final bill

• Base price is typically “per room up to 2 people” (common wording on official pages). :contentReference[oaicite:11]{index=11}
• Extensions can be a fixed amount per unit (some properties list “per 30 minutes” explicitly). :contentReference[oaicite:12]{index=12}
• Extra guest fees can be a percentage of the room fee (example: +50% per extra person at one property). :contentReference[oaicite:13]{index=13}
• Fri/Sat/holiday bands are often higher than weekday. :contentReference[oaicite:14]{index=14}
• Seasonal peaks (long weekends) can change published totals even within the same room type. :contentReference[oaicite:15]{index=15}

What to confirm before you go (ID, age, payment, entry rules)

• Passport/ID: Foreign visitors without an address in Japan can be required to show a passport and have it copied at lodging check-in. :contentReference[oaicite:19]{index=19}
• Adults-only age rules: Some listings explicitly state guests under 20 are not permitted. :contentReference[oaicite:20]{index=20}
• Payment method mismatch: Some properties accept cards; some are cash-only; and some listings state cash is not accepted (card only). :contentReference[oaicite:21]{index=21}
• Occupancy: “Up to 2 people” is common; additional guests can add a percentage fee. :contentReference[oaicite:22]{index=22}
• Who can use the room: Policies vary; one official page explicitly allows same-sex pairs and mixed-gender groups (with extra fees for 3+). :contentReference[oaicite:23]{index=23}

On-site flow: how it works (room panel, payment, checkout)

• Expect a room photo panel (buttons or touchscreen) showing what’s available. :contentReference[oaicite:27]{index=27}
• Staff may ask “Rest or Stay?” and payment is often up front. :contentReference[oaicite:28]{index=28}
• Room selection can be as simple as pressing a button, then receiving a key/code. :contentReference[oaicite:29]{index=29}
• Checkout may be key drop, machine payment, or desk—systems vary. :contentReference[oaicite:30]{index=30}
• If you overstay, properties may extend automatically and add fees. :contentReference[oaicite:31]{index=31}

Booking in Shinjuku: what’s realistic (walk-in vs online vs phone)

• Walk-in: You choose from what’s available on the panel—simple, but peak times can mean waiting. :contentReference[oaicite:36]{index=36}
• Online booking: Often asks you to choose Rest or Stay during booking. :contentReference[oaicite:37]{index=37}
• Same-day booking quirks: Some official systems switch “today” at a non-midnight hour (example: a Shinjuku property states same-day reservation date switches at 3:00 a.m.). :contentReference[oaicite:38]{index=38}
• Cancellation rules: Plan bookings can have no-show or late-cancel fees—read the plan terms.
• Reality check: If you’re arriving after the last train, you’re effectively comparing “Stay vs expensive extensions.”

Common misunderstandings: wording patterns that cause surprise charges

• “Free time” isn’t “all day”—it ends at a fixed hour, and going past can trigger extensions or a switch to Stay. :contentReference[oaicite:47]{index=47}
• “Guaranteed X hours” may apply only after a certain check-in time (example wording: a 12-hour guarantee after a late check-in). :contentReference[oaicite:48]{index=48}
• “Up to 2 people” is common; 3+ can add a percentage (example shown as +50%). :contentReference[oaicite:49]{index=49}
• Weekend labeling can include “holiday eves” and “in-between days of long weekends,” which change the price band. :contentReference[oaicite:50]{index=50}
• Automatic extensions happen if you lose track of time. :contentReference[oaicite:51]{index=51}

Access in Shinjuku: which station exits reduce “arrival-time” penalties

• Shinjuku’s love hotel cluster is largely around Kabukicho / Shinjuku-sanchome / Higashi-Shinjuku.
• Short walks matter because arriving a few minutes late can push you into extensions or a different plan.
• One Shinjuku property lists approximate walk times from multiple stations (use that style of info to choose your route). :contentReference[oaicite:60]{index=60}
• If you’re booking “today,” remember some systems treat the “day” as switching at a specific hour (example: 3:00 a.m.). :contentReference[oaicite:61]{index=61}

FAQ

Do foreigners need a passport to check in?

If you’re a foreign national without an address in Japan, you can be required to provide your nationality and passport number and show your passport so the lodging can copy it at check-in. :contentReference[oaicite:62]{index=62}

What’s the difference between “rest” and “stay”?

“Rest” is a short stay (often 1–3 hours). “Stay” is overnight and usually starts around the evening (commonly around 10 p.m., but each property publishes exact hours). :contentReference[oaicite:63]{index=63}

Can I book a love hotel online in Shinjuku?

Often yes—some hotels accept official web reservations and many appear on major booking sites. Just confirm whether your reservation is for Rest or Stay, and read any date-switch and cancellation rules carefully. :contentReference[oaicite:64]{index=64}

Will I be charged extra if I overstay my time?

Usually yes. Overstaying commonly triggers automatic extensions in fixed units (often listed per 30 minutes), and some properties explicitly state when an overstay becomes an overnight Stay. :contentReference[oaicite:65]{index=65}

Are same-sex couples or groups allowed?

Policies vary by property. One Shinjuku property explicitly states same-sex pairs are allowed and also allows certain 3-person combinations, but charges extra fees for 3+ guests. Treat this as property-specific and confirm before you go. :contentReference[oaicite:66]{index=66}

Appendix: Useful phrases

Note: Keep these short and factual (availability, total, ID, payment, time windows).

• 空いていますか？ / Aite imasu ka? / Do you have a room available?
• 休憩と宿泊、どちらがいま使えますか？ / Kyuukei to shukuhaku, dochira ga ima tsukaemasu ka? / Right now, can we do Rest or Stay?
• 休憩は何時間ですか？ / Kyuukei wa nan jikan desu ka? / How many hours is Rest?
• フリータイムは何時までですか？ / Furii taimu wa nanji made desu ka? / Until what time is Free time?
• 延長は30分いくらですか？ / Enchou wa sanjuppun ikura desu ka? / How much is a 30-minute extension?
• 合計はいくらになりますか？ / Goukei wa ikura ni narimasu ka? / What will the total be?
• 支払いは現金／カードどちらですか？ / Shiharai wa genkin / kaado dochira desu ka? / Is payment cash or card?
• パスポートは必要ですか？ / Pasupooto wa hitsuyou desu ka? / Do you need my passport?
• 2名料金ですか？3名だと追加はいくらですか？ / Nimei ryoukin desu ka? Sanmei dato tsuika wa ikura desu ka? / Is this price for 2 people? How much extra for 3?
• チェックアウトは何時ですか？ / Chekku auto wa nanji desu ka? / What time is checkout?