I have a dedicated 2-bedroom, with 2 queens and no sleeper sofa in the studio section, booked at BCV for next summer. Although this isn't printed on the confirmation they sent me, each CM I speak to at MS sees it on the reservation and says it's a booking, not just a request.
In our case, we want only one door to the hallway for our children's security. However, we want them each to have a bed (identical so there's no grousing) since they're different sexes and aged 9 and 12. And we want the living room available to everyone with no open bed to deal with.
To be sure of getting this configuration, I called day-by-day at the 11 month window.