Yup very normal. And they are nocturnal, so they will be in hides a lot during the day. You should see them come out more at night. If you just got your leopard gecko not long ago, it's most likely scared & stressed. So give it time, it'll get more used to the environment with more time.
Yea my guy likes to stay in his moist cave a lot lately. He's fairly active at night though from what I've seen since they are usually more active at night.