Last April we (me, DH, DS11 and DS15) stayed at CSR. Because one of boys is a serious kicker (no one will sleep with him), we asked for a rollaway when we checked in. It was delivered to our room quickly and fit just fine by simply moving the sitting chair to be in front of the connection door instead of by the window. We even left the rollaway open all week.
(We bought a twin air mattress on our way to WDW in case the rollaway wasn't available.... happily returned it to the store on our way out of town.)