Both the Wilderness Lodge and Fort Wilderness Resort and Campground are located within the Magic Kingdom resort area. There are a couple of options there for a family of six. Fort Wilderness offers
cabins that include fully-equipped kitchens and other home-style comforts. They feature a bedroom that includes a double bed and bunk beds. The living area has a Murphy bed. There is, of course, a full bathroom as well. You'll even find a wooden deck complete with picnic table and grill.
If you're looking for something a little more luxurious, you might want to consider a stay at the
Villas at Disney's Wilderness Lodge. The two-bedroom villas are 1,080 square feet and offer plenty of room for a large family to spread out. They, too, offer fully equipped kitchens. The bathroom even features a whirlpool tub that will be nice to soak in and unwind after a long day of touring the parks.
Maybe one of these options will suit your family. Enjoy your trip!