No, it's not a stupid question. Irons in your cabin are a BIG no-no . They are a fire hazard and not allowed.
You can bring a clothes steamer. I also like the Wrinkle Release spray. Also, if you pack everything in dry cleaning plastic bags, it will keep the wrinkles down.
Or you can do what I do. I take mostly knits, so I don't have to iron .
I haven't sailed RCL, so don't know if they have laundry rooms on board, but you can send things out to be pressed.
Have a great cruise,
"A truly happy person is one who can enjoy the scenery on a detour."
Just back from PCL CB and they had an iron on a timer in the laundermat.
Check with the cruise line regarding your particular ship.
CCL Inspiration 09
RCCL Explorer of the Seas Eastern 09
CCL Miracle Southern '08
RCCL Enchantment of the Seas Western '07
PCL Caribbean Princess Eastern '05
RCCL Explorer of the Seas Western '05
RCCL Explorer of the Seas Eastern '04
CCL Destiny Southern '01
CCL Sensation Eastern '94
CCL Ecstacy Western '92
CCL Jubilee Eastern '90