Eight hotels in Fribourg will start the offer this weekend, and continue it for the rest of the year. The offer is only run on Sundays and does not include breakfast.
Customers will be asked to pay what they consider to be the right price for the services they have received and to fill out a short questionnaire explaining how they arrived at their price.
"Our goal is not to offer something for free, even if we do accept customers who want to pay nothing at all. It's a risk we take," Sophie Rouvenaz from the committee of Fribourg hoteliers told online news website Le Matin.
"This offer is bold and innovative," said Thomas Allemann of the Swiss Hotel Association.
A similar project was undertaken in 2001 and showed that customers were honest and did not take advantage of the deal.
“The average price paid was almost identical to the actual price,” said Sophie Rouvenaz. “And we certainly hope for the same result, proving that our services are worth their price."