Hello,
Brumation is "essentially" the same thing as hibernation, only it is something done by
reptiles not mammals. To my understanding, glucose is used as a source of energy during
this phase for reptile metabolism in opposition to fat metabolism for mammalian hiberation.
It seems like they always do a little something different, meaning some sleep very deep &
don't always come out for water, food, etc. Others are very light sleepers & tend to come
out frequently for water & food or attention. It widely varies but it is a normal behavior in most
reptiles old enough to brumate. As long as they are seemingly healthy, of good weight & age
which is at least 6-7 months & their weight is stable they can safely brumate.
Hope that helps out.
Tracie