This is a very specific question that moms will appreciate.
Are the cribs on the Valor actually Pack N Plays, or portable cribs, or something like a Graco travel crib? I've heard that on different ships you may get different "cribs". I'd like to bring sheets from home (since I've also heard that there are no sheets that actually fit the cribs - only large bed sheets wrapping the crib mattress) but wonder what type to bring.
Call Carnival, give them your booking number and ask for the diminsion of the crib. This is what I did. We were on the Legend last April and it was a portible crib, not a pack-n-play. I could buy the sheets at BabiesRus (only in the store, not online). It was a regular bedsheet on the crib, but it worked fine and our daughter was so exhausted at the end of the day, she slept great!