When do geckos sleep?

Whenever (and wherever) they damn well please. But actually, it depends on the species. The geckos above are leopard geckos, a nocturnal species, so they sleep during the day. The vast majority of gecko species are nocturnal, with a few exceptions: Madagascan Day Gecko. read more

They find a place to hide, such as under a rock or in a tree crevice. Some geckos have eyelids ( members of Eublepharinae), so they will close their eyelids and simply lay there/hang there with closed eyes. Other geckos that don't have eyelids will reduce their pupil to as small of a slit as possible. read more

Just like humans, geckos need a good night’s -- or day’s -- sleep. Geckos typically hide themselves under tree bark, in a cavity or other sheltered space when sleeping. When sleeping, those geckos who are equipped with eyelids shut them, and those without eyelids constrict their pupils as much as possible. read more