First, all of these coldblooded animals, whose body temperatures adjust to the environment around them, require supplemental heat for proper digestion, immune function and metabolism.
Keep Them Warm
A reptile who may not need additional heat from an over-the-tank heat bulb or an under-the-tank heating pad during the summer may need these added heat sources during winter.
Let There Be Light
In addition to warmth, nearly all reptiles require ultraviolet (UV) light to produce vitamin D in their skin. This enables them to absorb calcium and phosphorus from their food.
Let There Be Light
You should provide direct UV light with a UV bulb designed specifically for reptiles that shines over the cage for 10 to 12 hours each day.
Say No to Hibernation
Conditions shouldn’t change with the seasons for a pet reptile, and since hibernating pets may be more disposed to developing infections and metabolic diseases, this more dormant state should be avoided.
Scaly Skins Need Moisture
If the air in your home gets really dry in cold weather, mist your reptile (or soak him in a shallow bowl of warm water) several times a week. Provide a shallow bathing dish into which he can crawl.