3 or 4 in a cabin

[mfs2k]

Until recently, my sky suite on Beyond had a capacity of 4 guests. 
it had the icon for a sofa bed in addition to the King bed. 
Now, when I look on Celebrity’s website, the maximum occupancy is 3 in my cabin. 
Why do you think that is?

[WestLakeGirl]

Could be that they changed out the furniture

Could be related to lifeboat capacity

Could be a typo

 

maybe other possibilities, too