What is WZMOCNIA?
A mobile unit with two rooms of silence and darkness.
It stands next to the hotel. A guest goes in alone — for 1, 2 or 3 hours.

What it is
In short
WZMOCNIA in four sentences
- The unit stands next to the hotel.Two rooms of silence and darkness.
- A guest buys a ticket.1, 2 or 3 hours. The ticket revenue stays with the hotel.
- The hotel finances the unit.Lease or loan. 0% down payment.
- NIHILI does the rest.Delivers, services, brings customers. Guarantees a buy-back.
Where does it stand?
Next to the hotel. No foundations.

- Leaves without dismantlingarrives ready and stands on supports
- 13.7 × 2.55 mdimensions of the set
- approx. 14 × 3 mspace needed — with access, on load-bearing ground
What does the guest do?
- Books1, 2 or 3 hours
- Goes in alonethe phone stays outside the door
- Stays in silence and darknessin an armchair, at their own pace
They can leave at any moment.

What is inside?
- Silencea quietened interior
- Armchairzero-gravity position
- Darknessthe guest sets it themselves
- MetaRoptional: spatial acoustics, a narrator and an online specialist
No cameras and no recordings.
A stay without audio or guidance is also available.
Is the guest alone?
Alone or with guidance.
- AloneSilence and darkness. No programme.
- With a narratorA narrator’s voice guides the stay. Eight programmes to choose from.
- With a specialistThe specialist connects online. Voice only.
How do we know it makes sense?
Silence and darkness have their own science.
Research · Chamber-REST · 2025
Three hours without stimuli. Researchers measured it.
One stay in a dark, sound-attenuated room — and a measurement a week later, compared with a group that spent the same three hours in an ordinary room with a phone. We say plainly what this means for WZMOCNIA — including what the studies did not show.
- 2 studies · 2025
- n = 180 and 116
- 1 stay · 3 h
- control group
Bartolen and Soláriková, BMC Psychology 13, 796 (2025); Soláriková and Bartolen, Acta Psychologica 253, 104697 (2025). Own charts from data in the articles' tables. The Chamber-REST laboratory was studied, not the WZMOCNIA Room.
Potential changes
What might change over time?
The strongest potential changes after a series of sessions
One session may bring a moment of relief. A series creates space for regular rest and practice between sessions.
Well-being, self-awareness and everyday habits.
- How we know:
- Studied after one stay
- What it depends on:
- The stay itself
- After one session
- Relief from excess stimulation and more mental space.
- After a seriesweeks–months
- Feeling less overwhelmed in everyday life.
Rest and calm
Less information overload
- How we know:
- Studied after one stay
- What it depends on:
- The stay itself
- After one session
- Relief from excess stimulation and more mental space.
- After a seriesweeks–months
- Feeling less overwhelmed in everyday life.
Possible effects depend on the person and the type of session. These are potential directions of change, not guaranteed outcomes.
See the complete overview →For the hotel
What does the hotel gain?
- A new paid servicetickets for 1, 2 or 3 hours
- A building block for stay packagesa night with sessions, a session package, business stays
- New customersNIHILI directs them to the hotel
Hotel guests · Business hire · Outside guests
Where do customers come from?
NIHILI directs customers to the hotel.
Hotel guests
- A guest buys a ticket
- Hotel: 100% of the ticket revenue
- Access to the unit
Charters
- NIHILI wins the orders
- Employers
- The unit comes to the organisation
Science parks · Office campuses · Industrial and logistics parks · Economic zones · Employer clusters and chambers · Large companies
Specialists
- NIHILI: accreditation, training, support
- Specialists
- Session booking
Psychotherapists · Psychiatrists · Development trainers · Coaches · Other specialists
Partnership
How does the partnership work?
The hotel finances the unit and sells tickets. NIHILI delivers, services and brings customers.
Hotel
lessee
finances
two rooms of silence and darkness
delivers and services
NIHILI
supplier
Who does what?
Hotel
- Provides the spaceapprox. 14 × 3 m, with access, on load-bearing ground
- Looks after guestsbooking, access, preparing the room
- Bills guestsin its own system, as it does today
NIHILI
- Delivers and commissionstrains reception
- Servicesevery week, an inspection every year, support in case of failure
- Provides the toolsbooking platform, narrator programmes, materials
- Brings customerscompanies, specialists, customers from wzmocnia.pl
The hotel has one account manager at NIHILI.
Money
What is a charter?
The unit goes to a company. The hotel gets paid.
- A company ordersthrough NIHILI, for 4 or 11 days
- The hotel accepts the dateeach trip separately
- NIHILI takes the unittransport, operation and service are on NIHILI’s side
- The hotel gets paidfor the whole time the unit is away

The hotel decides about every trip.
A charter requires the financier’s consent, set out in the contract. The rate is given in the offer prepared for the hotel.
Sessions and inventions
Who leads the sessions?
The same room. Leaders always online.
WZMOCNIA
The stay alone, or a narrator’s voice — eight programmes to choose from.
the unit’s house rules
REST
Only specialists with professional credentials — including psychologists and psychotherapists — after accreditation.
a published REST protocol
INWARD
Development trainers and specialists — after NIHILI training.
the NIHILI protocol
SPECIALIST SESSIONS
Specialists and facilities after accreditation.
the specialist's own
The specialist leads every session online, by audio. Staff are available over the intercom during every session, and the client can stop at any moment. NIHILI does not provide medical services.

5 patent FILINGS for inventions
Polish inventions
The WZMOCNIA Room and its control are solutions developed in Poland by NIHILI P.S.A. Five of them have been filed for patent protection with the Patent Office of the Republic of Poland.
Getting started
How do we start?
With a site visit.
- Site visitwe check the space and the access
- Calculationlease or loan, mLeasing
- Contractwith the guarantee of a buy-back and a lease takeover
- Production6 months from order to delivery
- Deliverycommissioning, training and support
- Saleshotel guests, WZMOCNIA Charter business customers, customers from wzmocnia.pl
Who is behind it?
The WZMOCNIA unit is made by NIHILI P.S.A.
NIHILI · Our job
- Prepare and service the site well
- Provide the hotel with individual customers and business customers for charters
- Promote the brand dynamically
Let's talk about a location
A 45-minute conversation: which guests, where the unit could stand and how reception would handle it. On that basis we prepare a cost sheet and a financing calculation.
Let's talk about a location