Fortunately Carnival has much larger staterooms than other cruise lines. If memory serves me correctly, I believe around 184 sq. ft. on their inside cabins. I am guessing that you'll have two upper and two lower bunks as well as a sofa bed or a roll away. it will be tight, but its do-able. I imagine that you will really grow to appreciate your cabin steward, as he/she will come in the morning and put your cabin back in order putting away all the extra beds. Then in the evening he/she will come in and turn down all the beds again. Basically during the majority of the day you should have room to move about more freely. The other thing that may make this a little more managable situation is to know that there are wonderful showers (multiple directional shower heads) in the spa area that can free up the bathroom in your room. Have a blast!!!