Is my snail hibernating?

[bookwanderer]

hello again. this morning I woke up and couldn't find my snail anywhere in his habitat. so I searched for him until I did find him and he was somewhat buried in the dirt (everything but his shell). I was worried and wanted to make sure he was okay, so I pulled him from the dirt and sprayed him to ensure he wasn't dry. When I set him back down, he went straight back to his hole. I think he's trying to hibernate, but I'm unsure. I guess my question is: should I let him? Will it be good for him? 

Another note and something I worry about is that we were about to switch him to a new habitat. We need to replace his current one because it's been damaged and we just got the new one in the mail yesterday. If he's going to hibernate, I would rather him be in the new, undamaged enclosure than the one he is currently in. 

I need advice. I'm still learning all of this and I'm worried. 

[Liguus]

What species is it? Many will sometimes try to hibernate in captivity, and some species like to bury more. In both cases it's not a huge deal to be concerned about if it's a snail from a temperate region. If no epiphragm (solid white "shield" of mucus protecting the shell opening) is present it can easily be moved into a new terrarium with no issues. I would say even if it does have an epiphragm it could still be moved and placed in a similar orientation and depth in soil.