A coworker is leaving for a 4 night cruise on the Dream this weekend. He and his party are freaking out over the Disney website suggesting men and women dress up one of those nights -- a so-called formal night. I didn't experience anyone dressing this way for dinner at any time on a 4 night cruise. I told him the only requirement I knew of was a jacket for Remy's (and Palo, too?) Can anyone clarify this issue for us quickly?

Thanks in advance!