Hello Claudia!
One of the things we love most about Disney is the flexibility the ticketing options give us, especially with having two little ones along for the magical ride.
Your Magic Your Way Base Ticket will allow you to reenter the same park as many times as you wish in one day. So, if you want to go back to your room for a nap or swim, or dine at one of the Resorts, you're still able to return to the same park later on that day.
For example, when we are at Magic Kingdom Park in the morning, we like to leave around lunchtime and dine at
Kona Cafe at Disney's Polynesian Resort and then head to our room so the little ones (and the adults, too!) can take a nap and recharge. Around dinnertime, we head back to Magic Kingdom Park, grab something to eat, and enjoy the fireworks.
Here's hoping you have a most magical vacation! Come back and see us real soon.