Turns out, sleeping with your balcony door open on a Carnival cruise is totally fine—just don’t let it slam or annoy your neighbors! Carnival’s Brand Ambassador John Heald set the record straight: leaving your door open only affects your own AC, not anyone else’s. But don’t drag your mattress outside (big no-no), and keep the noise down—Bluetooth speakers are banned now. Oh, and no smoking or hanging laundry out there either. Basically: enjoy the ocean breeze, but play nice! #CarnivalCruise #CruiseTips #TravelEtiquette #Home