That is a good question.......being that you are allowed 4 in the room, 5 with a child under 3. So in my eyes it seems possible that it would be allowed but call MS and make sure.
I agree. Even in an OKW studio, you'd have 3 adults sharing one room, and more importantly, one BATHroom! And you'd have two little kids in addition.
If you're in anything but an OKW studio, you'll have one queen and a sofa bed in a much smaller room, which makes matters even worse.