Flatfish1

I've been experimenting with under-enclosure hide boxes for reptiles. I just got a new Woma Python. Young adult. They spend a lot of time in burrows in the wild, like many reptiles do. The upper enclosure has a nice hot spot and hot side hide. The under-enclosure box is NOT heated as it would be in the wild. My question is this: Should I be concerned that my Woma spends too much time in the under-enclosure hide that is cold as opposed to staying warm in the upper enclosure? I took her out of the cold hide this morning and put her up top, but she immediately went back down into the cold. Should I trust that she knows what she is doing? Should I add heat to the under-enclosure hide?