Are there two double beds in a room or two single beds for mom and son - or is this strictly one bed suites?
The room we stayed in had one bed, a couch, and a rollaway bed in the closet. I'm not sure if all the rooms are the same or not. I think it's worth a call to ask if the room you're looking at can accomodate the two of you.
Get an answer from The Club at Hillbrook staff and past guests.