What a great tip! This is the kind of thing I would not have thought of! My feeling is that if there is a lot of night-life, I would most likely nap in the afternoon, and this sunlight thing would be important.
Yes, this was my understanding. Hubby and I are both on no simple carbs plans, and it’s my understanding that if I inform them of this ahead of time, they may be able to provide us with, say, sugar-free desserts. I also got to look at a sample dinner menu, and it seems that they don’t try to cut costs by adding pasta to every entree!
I’m sorry, but I got a mental image that almost made me laught out loud! Mr. Norinew has big, bushy, really, really curly hair that just wouldn’t mix with a plantation hat! He’s been known to wear a fedora on occasion (and look pretty cute, I might add), but generally hats aren’t his style! Me, OTOH, when we went to Florida last summer, I bought a wide-brimmed straw hat, and liked it. Wal-Mart sells them for about $4.00 each, so there’s no reason I can’t buy an assortment and have one for every outfit. This is something else I never would have thought of!
Sitting around is exactly what I could use! After dealing with the stresses of raising a teen, and adolescent and a toddler at the same time, I don’t get to do much sitting around doin’ nothin’. Also, as mentioned in the OP, my sisters will be there, and we’ll go together and see the cheesy entertainment and make fun of it! 
BTW, on Carnival’s website, they mention “complimentary 24 hour. stateroom service”. Extra points go to the first Doper who can tell me what kinds of things this service entails!