We booked a cruise 2 years ago and forgot to upgrade the room. The ship is Carnival Mardi Gras and despite a small room, we had the BEST time together. POV: you forgot to upgrade your room and youre about to be real close for the next week. Couple at the Carnival Mardi Gras cruise and forgot to upgrade their rooms, and now the for of them are cramped up on a tiny room, with 2 of her kids and her husband but they still had the best time