Some, but not all have a built in bench - sort of like a shelf supported on 3 sides by the wall. They are counter height (about 34 inches high) and most are around 36 inches long. A few are as long as 42 inches, but that is not common.
A few have one of the fold down baby hanging stations.
Many have nothing at all except for a toilet and a sink.
If you have a larger child and they need to lie down for changing, the easiest is going to be to use First Aid. There is a First Aid station in each park. They are nice, cool, quiet and dimly lit. They have low to the ground cots in cubicles or rooms like this picture, some with 2 cots and a curtain for privacy:
There are also rooms with an actual 'doctor's exam room type table' that can be raised and lowered. Those rooms have a door for privacy.
Our Authorized Disney Vacation Planners are here to provide personalized, expert advice, answer every question, and uncover the best discounts.
Let Dreams Unlimited Travel take care of all the details, so you can sit back, relax, and enjoy a stress-free vacation.