Iguanas do not sleep in the same sense that humans do. They go into a state of reduced activity or rest with a lower heartbeat but are essentially aware of outside conditions and movement. read more
With their eyes closed. Sorry, I couldn't help myself. Seriously though, they typically sleep in trees where they are less vulnerable to predators. read more
The Typical Iguana Day - Green iguanas are very diurnal. This means that they are active during the day and sleep at night. My experience with my own iguanas demonstrates how rigidly they adhere to this activity cycle. read more