I was not joking
"king" in the snake world means Top dog, Uber reptile ,Big daddy, Wellard, etc
I think you get the picture
When this guy turns up for action then mambas ,rattlers or vipers are left holding his coat. When hes bigger any of the aforementioned will make a tasty snack before lunch and a python chaser
The mat is plenty warm enough forget the air above it because they cant fly.
Make sure there is room to move off the mat or climb up to cool off.
If you defrost a mouse and wave it about near the viv you will soon know whether hes hungry.