Hi, I have 14 hours overnight connection. Do I need a visa to stay in a hotel?

Dear Marta, you don't need a visa for the overnight transfer. Before landing, do fill in the "embarkation/disembarkation card". Then you can easily apply for a stay permit at the immigration channel with it. Showing the card (it is best to hold the onward boaring pass as well), and you will be allowed to leave airport for overnight stay.