Should I turn my leopard gecko light off at night?
Their sensitivity to the time of day means that to maintain a healthy internal clock, leopard geckos require a balanced day (light) and night (darkness) intervals.
Leopard Gecko Lighting at Night
These lights can be kept on for two hours after you switch off the day light, but they should not be used all night. Full darkness is important for health of these night-loving lizards.
Your leopard gecko doesn't need any lighting at night. It is very important that they are not provided with a bright light at night, as it will interfere with their circadian rhythm and prevent them from going through normal night-day cycles.
The basking lamp is left on for 10-12 hours per day. At night, all of the lights should go off and the enclosure should be completely dark. This should make sure that the gecko has a clear day night cycle.
What Is the Correct Temperature and Humidity for a Leopard Gecko? Leos are semi-desert reptiles that like it warm and dry. The ideal daytime temperatures for leopard geckos are 75° to 85°F (24-29 °C), with up to up to 90°F (32 °C) under the heat lamp. The nighttime temperatures should never drop below 65°F (18°C).
Yes it is a good idea to leave your gecko's heat lamp (or other heat source) on 24/7. The bright light of morning created by a daylight bulb will help your gecko feel more like his tank is like his natural environment. A proper day-night cycle will help him enjoy both night time and a cooler time of day.
UVB lights should be kept on during the day and turned off at night and should be used along with calcium supplements. Do not keep UVB lights on all the time as this can cause another problem, hypercalcemia (too much calcium).
Leopard geckos need a temperature of 68 °F during the night to get into deep sleep. Higher temperatures during the night could prevent leopard geckos from getting into deep sleep, which can hurt their health in the long run.
Leopard geckos are mostly nocturnal, yes! Whilst leopard geckos are not out and about during the day like a bearded dragon, they do emerge at dawn and dusk as well as at night.
Many adult leopard geckos can go without food for ten days to two weeks because of the fat storage in their tails. It is completely normal for leopard geckos to go without eating for long periods. Unlike mammals, reptiles do not require food every day to survive, particularly during the winter.
What time do leopard geckos go to bed?
Leopard geckos sleep for around 12 hours and stay awake for the other 12. They usually sleep from dawn till dusk. If you notice that the sleeping pattern of your leopard gecko significantly deviates from this, there might be something wrong.
Since leopard geckos are nocturnal, they do not appear to need UVB lighting like many other reptiles do but some research shows it may be of benefit nonetheless.

Geckos prefer to sleep under some form of cover, hidden from potential predators. Nocturnal or otherwise, wild geckos sleep under leaves, under the bark of tree trunks, under rocks, or anywhere they can hide.
Leopard geckos can survive without heat for up to 90 days, as long as the temperatures don't get lower than 60 degrees Fahrenheit. They will be okay for the first few days, but if the lack of heat persists, they will enter into Brumation and live off their fat reservoirs.
Therefore, a leopard gecko's eyesight, paired with their incredible sense of hearing and sensitivity to vibrations, makes it one of the most efficient hunters at night in their natural habitat. Take extreme care of their eyes and you'll have a happy, healthy pet who'll live a long life.