Hi, there!
Welcome to planDisney, Paige. I'm so glad you stopped by! If there's one thing we love chatting about here, it's the Walt Disney World Resort. We're happy to help you plan your visit!
You're familiar with the phrase, "the more, the merrier" and that's certainly true of Disney Resort hotel stays and
theme park adventures. To answer your question, yes, your family member can add additional Guests to their existing Disney Resort hotel reservation as long as the room occupancy will not be exceeded. It's possible that your family member could
modify their existing reservation online on their My Disney Experience account, but I recommend
calling the Disney Resort Hotel Reservations line to speak to someone over the phone, especially because you'll only be added for a few days and not the entire stay. A friendly Cast Member there will be happy to assist them!
While you're counting down the months to your January visit, be sure to keep an eye on the
Disney Parks Blog. It's your best resource for news and updates about Disney Parks and destinations!
I hope this was helpful, Paige. Please let us know if you have any other questions about the Walt Disney World Resort! We'd love to help you plan a magical visit.
Ashley