I would be worried leaving her alone that long. When Laddy was that age we went on a 6 hour trip to see my dying aunt. We thought we were being so smart. Set his xpen up, plenty of food, water and peepads. When we got home ....no Laddy in the pen.
I was frantic yelling and searching. The little stinker had scaled his xpen and was hiding under the bed lol. Anyway I said all that to say, sometimes with some of them even gates won't keep them in.