Pop does have rollaways, a room a few doors down evidently had one as I saw it outside their door when they checked out. How many or how much it costs I don't know but I did see one.
Everything I have read says NO they do not offer them, only cribs. There isn't room for one either. They also don't allow 5 people in a room, unless one is a baby.
The value resorts do not allow a roll away in the room because of fire codes. The room is too small. We end up with one of our boys sleeping on a blow up mattress on the floor. We like staying at a moderate because you can get a roll away there for $16.50 a night.