The stated maximum occupancy for
DVC one bedroom units is 4 plus a child under three (who can sleep in the Pac N Play portable crib). 1 bedroom units have a king size bed in the bedroom and a queen size pull out sofa bed in the living room.
That said, MS has been known to "look the other way" for families of five. If you choose to stay in a 1 bedroom with 5, you will have to bring your own bedding or make do with what is provided. DVC will not provide a rollaway or extra bedding to accomodate more than the stated maximum.
These threads tend to quickly degenerate into a debate as many posters have strong opinions about exceeding the occupancy limits. If it does, please do not take of the replies personally.
Enjoy your trip!