Monaco has been cited as having the most expensive overnight stays for uninsured foreign patients. A study carried out by finder.com put the Principality at the top of the list, with an overnight stay costing 2,924 euros per night – almost seven times the price of a five-star hotel in Monaco, which is 436 euros per night on average.

The personal finance website also claimed that a hospital bed in Norway costs 1,140 euros, while an overnight hospital stay costs 1,062 euros in Qatar.

Jon Ostler, UK CEO at finder.com, said: “An uninsured stay in a foreign hospital can have a financial impact that could take years to recover from.”

On top of the accommodation bill, medicine and specialist treatment must also be considered.