As reptiles, iguanas depend on the sun to warm up and stay active throughout the day. Therefore, they must sleep at night to rest and recharge. In the wild, iguanas usually find a safe place to hide and go into their brumation state to sleep. They can enter this slumber in places such as tree branches, rock shelters, burrows and caves, as long as they are dark and high up from any outside dangers.
Since iguanas are cold-blooded, they can’t produce their own body heat, so they rely on the sun to stay warm. During the day, they will often climb up trees to bask in the sun for warmth. At night, they will seek out a dark area to sleep. They typically avoid sleeping with other iguanas or their owners, as they are solitary creatures in the wild.
In captivity, iguanas may sleep on anything in their enclosure that is dark and high up. They can sleep on rocks, bushes, logs or even leaves. They can also sleep on their own, if they are comfortable in doing so. The best thing to do is to let an iguana choose its own sleep spot based on its preferences.
In the wild, iguanas can be found in a variety of habitats including rainforests and swamps as well as dry forests. They can also be found in coastal regions and mangrove swamps. They tend to sleep on a large variety of surfaces including branches, rocks and the ground.