So I got 3 leopard geckos (Haiku, Honey, and Hazel) from a kid who lost interest and they all live together. I never noticed the sound from my other 2 before I got them so I assume it's one of those 3. Anyway, I've noticed a noise kind of like a squeak coming from their cage at night. She just makes the noise once a night, and I don't know which one is doing it. Last night I was still up when it happened so I started watching to see if they were doing something different but they weren't. I've never heard of leos making noises so I was just wondering what it could be?