HOWEVER, one pair will be on a pull out couch that does not have the best mattress. Our kids slept on it "ok" but we asked for extra blankets for padding.
With two adult couples you will keep the bathroom very busy tho.
can you tell me which rooms have the double sofa? I called carnival and they said that some rooms ahve the double sofa and some have the single sofa and one upper bed. but when I asked which rooms have which the guy just told me that "well, there's lots of them".
We have three adults booked on the Glory in Cabin 7322 which is a cat 11 with the large balcony. It has two twin beds or one king you can make it. Then there is the single couch. I told all of them we are switching out every other night taking turns on that couch. I figured how bad could it be. We wanted a balcony most of all. So we are going to have fun and just make the best of the sleeping arrangements. It cant be worst than sleeping on a regular bunk in a regular boat and I find that ok.
We had a cat. 12 suite on the Fantasy and it had a double sofa. Also, a couple we sat with at dinner had a cat. 11. They saw our cabin and stated that ours was bigger and in a better part of the ship than the one they had.