Just got back from RCL Sovereign of the seas april 18th sailing. After much debate on the subject, I brought dress clothes for the main dining hall.
Only to see over 40% of the people in there (every night !) in either jeans or shorts on non formal nights! My advice is don't worry about any night or any outfit except for formal night. The atmosphere is casual, and no one was made to feel any less welcome! heck, everyone was enjoying themselves, no one cares!
formal night, was just that. dress your best and you'll be fine!
Soveriegn of the Seas (April 2005)
Carnival Miracle (July 2005)
Explorer of the Seas (April 2006)
Mariner of the Seas (July 2006)
Mariner of the Seas (April 2007)
Freedom of the Seas (July 2007)