There are connecting rooms available at every price level. If you click
HERE, you can see how a larger traveling party can stay at WDW on a budget. But for your particular situation, I would recommend you spend a bit more and stay in a two bedroom villa-style room. These are available at Old Key West, Saratoga Springs, Wilderness Lodge, Animal Kingdom Lodge, the Boardwalk and the Beach Club.
These rooms are really like small apartments. There is one bedroom with a king-size bed and a large bathroom. There is a second bedroom with two queen-sized beds and a smaller bathroom. And there is a large living room with a queen-sized pull out couch. This allows you to sleep up to eight people on four separate beds. Additionally, there is a real kitchen with full sized appliances and a washer-dryer. The large amount of space and three separate rooms are great for parties with adults of different generations or who might need a bit more privacy for any other reason.
For pricing or reservation information, call 407-W-DISNEY.