Myself I would get the next size up for your hide. My snake will go back in the corner while it is sleeping and will have his head just inside when he is awake. I personally thing the snug idea is a little over emphasized a hide means hide not a hat. My snakes have never had a problem with their hides and I have always provided a hide where they have a little room. That is why I like the black off set door hides from Reptile Basics and Pangea ( Amazon )