brumnation to do or not to do
If you consider Leopard Geckos originally come from areas that are Dry, arrid, deserty type areas that dont have 4 seasons like we do here in the midwest then it would seem that brumnation is not neccessary in those kind of conditions. However, when an animal is exposed to constantly changing temperatures and weather conditions its only natural Geckos would go into a state of brumnation to survive these kind of weather conditions. So if you look at it that way, its not necessary for the Leopard Gecko to go into brumnation, I dont think it has any impact on the Gecko's health whether or not it chooses to go into brumnation or not. Some Geckos will go into brumnation whether you induce conditions or not. If your gecko is getting noticeably sleepier, eating less but otherwise healthy he may be going thru brumnation. Just let him be, keep the under tank heater on at all times though. Make sure hes got a warm and cozy den to sleep in. I recently got a hide away that you can see thru the wall of the tank, so I can keep an eye on him without disturbing him. Also keep note of his size, weight loss should be very minimum during brumnation. If you notice dramatic loss in weight or size there may be something wrong. I hope that answered your question.