Hi Pat,
What you're looking for a villa-style room. A party of your size would need a two bedroom villa. These are located in the following hotel: Animal Kingdom Lodge, Beach Club, Boardwalk, Bay Lake Tower (Contemporary), Old Key West, Saratoga Springs, and Wilderness Lodge. There is ample free Disney transportation to all the parks from these locations. However, with a toddler, the most convenient of these would be Bay Lake Tower, with easy access to the Magic Kingdom, or the Beach Club or Boardwalk, with easy access to Epcot and Disney's Hollywood Studios.
The two-bedroom villas sleep eight or nine guests. They have two separate bedrooms, two or three bathrooms, a living room, and a full kitchen. It's really like having your own apartment right at Walt Disney World.
Good luck with your planning. Please let us know if you have any additional questions.