Smail sleeps with one eye out?

[zoeboe]

My achatina snail has been doing something quite silly lately. When she is sleeping (or may be just resting) she leaves her head out with only one eye sticking out. Usually she sleeps with her head inside her shell or tucked in but she started doing this recently. Does this mean anything?

[Phantom]

I think that's pretty normal, my snails does that a lot too!