It may take a few days, he can go a long time without eating. Just keep him hydrated.
For substrate get some kind of soil/dirt that he can dig into and bury himself, you can keep the repti-bark or cypress on top, Keep the dirt a little damp.
For substrate get some kind of soil/dirt that he can dig into and bury himself, you can keep the repti-bark or cypress on top, Keep the dirt a little damp.