Saunas & bathhouses
Private saunas by time slot, open floors billed from entry to exit. Cleaning buffers and auto-checkout keep turnovers running without staff.
SAUNA LOFT
Private 90 min
¥4,500
Checked in
Checked in
© UnlockOS
The Challenge
- Private saunas are booked back to back, and the room is still wet when the next guest arrives
- Open-floor guests pay a flat fee whether they stay 40 minutes or 4 hours
- Late-night and early-morning demand is real, but nobody wants to staff the desk for it
- Towels, drinks and a locker are sold at the desk, so the desk has to be staffed
How UnlockOS Helps
- Private saunas are sold in time slots with a cleaning buffer between them, so the schedule protects the turnover
- Open floors bill from entry to exit, with a daily cap, so a short visit is cheap and a long one still has a ceiling
- Keys reach the guest's phone at any hour; open sessions settle themselves at closing time
- Towels, drinks and lockers are options picked at check-in and settled with the stay
Flexible pricing for every scenario
Private sauna slot
Fixed-length booking with a cleaning buffer blocked after it.
90 min ¥4,500, buffer 30 min
Open floor, per minute
Billed from entry to exit with a daily cap.
¥15 / min weekdays, ¥20 / min weekends, cap ¥3,000
Night surcharge
Added after a time of day, per plan.
After 22:00: +¥500
Options
Chosen at check-in, settled with the stay.
Towel set ¥300, locker ¥200
Seamless experience from start to finish
Book a slot or walk in
Reserve a private room by time, or scan at the door for the open floor.
Pick options
Towel set and a locker added at check-in.
Issue the key
QR + PIN for the room or the floor, valid for the slot or until closing.
Block the cleaning buffer
The 30 minutes after the slot cannot be booked; cleaning staff get a key for that window.
Settle at exit or closing
Open-floor time is calculated at exit; anything still open settles at closing time.
Get started in 3 steps
Decide slot or usage
Private rooms: 90-minute slots with a 30-minute cleaning buffer. Open floor: per-minute billing with a daily cap. Both can live in the same facility.
Add the options
Towel set, drinks, locker, a night surcharge after 22:00. Guests pick them at check-in; nothing is sold at a desk.
Open the unstaffed hours
Guests book or walk in on their phone, get a key, and the room or floor opens for them. Cleaning staff get a temporary key for the buffer.
Reservation, walk-in or membership — your call
How you take guests is the owner's decision, not the industry's. Mix all three and they still share the same plans and inventory.
By reservation
Private saunas are sold by time slot. The key opens only that room for that window, and the cleaning buffer is blocked automatically.
Walk-in
Open floors take walk-ins: scan at the door, bill from entry to exit, settle on the way out.
Membership
A monthly pass can cover the open floor outright and give members a discount on private slots.
Built for your workflow
Time slots with a cleaning buffer
A private sauna is sold in slots, and the buffer after each one is blocked automatically. No back-to-back wet rooms.
Entry-to-exit billing
Per-minute pricing with weekday and weekend rates and a daily cap. Pay at the exit for the time actually used.
Plan groups at the door
Let the guest choose at check-in: sauna only, or sauna plus the lounge, at different rates.
Night surcharge
A time-of-day surcharge after 22:00, per plan.
Cleaning keys
Temporary keys for cleaning staff, valid only in the buffer window.
Auto-checkout at closing
Every open session ends and settles at closing time, even if nobody tapped out.
Works with your existing tools
Smart locks
KEYVOX is built in; locks with a public cloud API are connected through an adapter.
Stripe payments
Slots, usage time and options, settled automatically.
LINE
Book, check in and get the key from LINE.
Smart lockers
A locker is issued with the stay and released at checkout.
KEYVOX opens the door. UnlockOS runs the business.
KEYVOX smart locks, gates and lockers are built into UnlockOS. The moment a booking or payment completes, a key only that person can use (PIN, QR or LINE) is delivered, and it expires on its own. Hardware choice, installation and wiring are covered on the KEYVOX side.
KEYVOX locks also cover the lighting and heater automation that often sits behind the same door.
See the KEYVOX page for this industryRun the next site exactly like the first
Built so you can add sites without hiring an IT team.
Open the second site by copying the first
Plans, pricing, opening hours and key rules from the first site are copied to the next one. Nothing is rebuilt from scratch.
Separate permissions for HQ and each site
HQ sees every site; a franchisee or manager sees only their own. When someone leaves, you remove their role — nothing physical to collect.
Revenue and check-ins per site
Compare revenue, check-ins and members per site from HQ. It feeds franchisee support and the next opening decision.
Ready to monetize your space?
Join property owners who automated their operations with UnlockOS.