In the wild, they are mostly nocturnal, in captivity, from what I've seen, it depends on the gecko. If they are sleeping in a hide, they are still acclimating probably. Also, check the temperatures. If it is hot, they will sleep more. I try to keep the warm side around 86-88 degrees, and the cooler side 78-80. They seem to like that, and come out at night and roam around a bit, and roam around a bit during the day as well. I don't keep any bright lights on mine during the day though, just indirect light, so that may make a difference.