Hi, all. I recently posted on how much my Russian tortoises like digging in the new coco coir substrate of their indoor enclosures. However, my male buried himself 2-3 days ago, and he hasn't surfaced since. Sometimes I can hear him scratching down there, and I can see the surface of the substrate moving over him sometimes, too. He tried to do this last week, but I pulled him out after a day. He looked great and fed well, but now he hasn't come out on his own to eat or drink, so I'm wondering if I should pull him out. What would you do?