Hey there, hi there, Ray. That's a darned good question, so I'm glad that you brought it to us to answer.
Walt Disney World offers accommodations that can sleep up to 12 guests, so there's really a wide range of room sizes. Most
Disney Resorts Collection hotels sleep four to five guests, and there's not really a breakdown by age. If a room maximum is four guests, that means four guests of any age. You can also have one infant in a room under the age of three that will not count towards your room maximum.
I also want to mention, Ray, that you may come across what's called a 5th Sleeper at Disney's Port Orleans Resort - Riverside. There is a pull-down bed in these rooms that is a bit on the small side, and generally suited to a child under the age of 10. In those cases, those rooms will hold five guests, plus a child under the age of three, but that fifth person should be younger or smaller.
I hope this helps you figure out your room situation. If you need something a little bigger without moving on up to a deluxe villa resort, check out the family suites at
Disney's Art of Animation Resort or the
Cabins at Disney's Fort Wilderness Resort. Both can sleep up to six, plus that one little one.
If we can help with anything else, Ray, just come on back and see us!
Anna