when your snake starts the shed cycle, you have two options to make it go easier for him. You can either raise the humidity in the tank by misting daily and keeping the humidity up around 60%, or you can make a moist hide. That's when you'd take something like a plastic container with a hole in it so he can get in and out. You'd need something like damp moss or damp paper towels inside there to keep it humid. That way, the snake has the option of either being in a humid environment or not. Misting has always worked just fine for me though.