Shuttle from hotel for easy access

I do not know the answer to your question. I found the following information on the Internet, but, of course, it is the Internet, so the information could be flawed. As suggested at the end of the information, I would check with the Italian authorities. Please note that the following is a direct quote of what I found on the Internet. "Whether or not someone from a non-Schengen country needs a visa to stay at the Hilton Airport in Rome depends on a few factors: 1. Where is the Hilton located? There are actually two Hilton-branded locations near Rome Fiumicino Airport: Hilton Rome Airport: This hotel is located landside, meaning it's outside the secure area of the airport where passport control and customs are located. Staying at this hotel would require you to enter Italy, which means you would need a Schengen visa (unless you are exempt for your nationality). Hilton Garden Inn Rome Airport: This hotel is located airside, meaning it's within the secure area of the airport after passport control and customs. If you have a valid boarding pass for a connecting flight departing from the Schengen zone, you may be able to stay at this hotel without needing a visa, even if you are from a non-Schengen country. However, this is not always guaranteed, and it's best to check with the Italian authorities or the hotel in advance to confirm." I'm sorry I don't have a definitive answer for you, but hopefully this will get you started on your search. Also, sorry I didn't see your note sooner. I don't get into Trip Advisor every day.

Even if it is, it’s really not worth visiting!

some rooms had two doubles. I believe that would accommodate 3 adults.