As long as you provide a wide range of temperatures to bask at it wont matter what the temps get to.

I've got a viv ranging from 35c or slightly higher at the hottest then it slowly goes down to around room temperature at the bottom.
She will still use the areas that are above her optimal temperature in the morning and after a meal then she's slowly work her way down the wall to room temperature at the bottom where she'll explore her viv or hide away.


I used the same methods of heating and viv design in this thread which really benefited my garter.Naturalistic Snake Enclosures With Fake Walls - A How To Guide (Pic Heavy) - Reptile Forums