We are a family of two adults and two kids (11 and 13) looking onto booking a cabin for this voyage. The family cabins appear to sleep up to 6 (which is more expensive and we do not need this much space). The next rung down appears to be a cabin that allegedly sleeps up to 4 people, but only appears to have 3 beds?? (A top bunk that can fold down and two beds at floor level which can be pushed together to make a double). Am I missing something? Is there a cabin that has 4 beds?