Hi Jeffemy -
Our party is the same as yours - 3 adults and 2 children. The last poster is correct - you can have 5 in the room, but they will charge you an extra $25 for the 3rd adult, plus $25 for the roll away bed. My sister has stayed at RPR before, and she felt the room would be pretty crowded with the roll away. So we opted for the deluxe room at the HRH instead. The room has two queen beds and a fold out sofa, and is about 125 sq feet larger than the standard room at RPR. You will still pay for the extra adult, but you won't have to pay for a roll away, and you will have the extra room. We are staying 4 nights, and I know we will appreciate that extra space. We are paying $227 (APH rate). Our dates are 5/31-6/4. I'm pretty happy with that rate.
Have fun on your trip.