Check your temps, she maybe be looking for cooler/warmer temps.

Is the activity lazy just poking into things or is it full of fast movements lots of forward and back head movements and constantly. Frantic like movement, as apposed to relaxed?

A snake that is active at night can be stress (heat stress usually, security stress is often trying to get under things and find a deeper darker corner) Or it can be just curious and inquisitive some are some are not. It is the pace of activity that is the clue.

Check the temps inside the hides very carefully as it could easily be heat related.