Award rooms have a cap of two occupants, unless I'm very much mistaken.
You need to reserve three rooms every night, or you're breaking the rules. If the child is small enough for a cot two rooms might be reasonable. But if it's old enough to go to school, two rooms is less than you're meant to have.
Is that true though? If a couple has an 8 year old kid are they supposed to get two rooms and have one parent stay with the child while the other stays alone in the room next door?