Hi Melissa,
Thanks so much for visiting the Disney Parks Moms Panel with your question. Having visited Walt Disney World with my daughter many times when she was young, I appreciate the need to provide little ones with some down time during a busy day.
I believe that I have just the thing you are looking for! Inside of each Walt Disney World theme park, you will find a
Baby Care Center. The Baby Care Centers are a place to change and feed your little ones, and they also have space to simply relax and take a break. When you visit the Baby Care Center, you will not have to leave the theme park, you will be able to take some down time and then rejoin your family.
Another idea for having some rest time with your little one is to take a ride on something gentle. I will always remember my daughter falling asleep on the monorail when she was young. We rode the monorail until she woke up from that nap! You could ride other gentle rides as well, such as the Walt Disney World Railroad at Magic Kingdom. Sometimes the calming motion will help your little one to relax.
I hope that these thoughts are helpful for you, Melissa! Have a wonderful time planning your magical vacation, and please do let us know if you have any further questions.