Behavior Sleep Talking

[LifeAsItMayBe]

Sometimes as I sit at the computer by the C&C, my guinea pig makes little squeaking noises and when I look over she is lying down asleep! Just now she made a low noise like Chewbacca from Star Wars. Do anyone else's pigs make noises while they snooze?

 

[Ithilgil]

I'm not sure if my cavies do that. I've never seen them asleep before, mainly because I can't see into their hideaway well enough to do so. But I know for sure that my dwarf hamster does. And I've heard other pets (e.g. dogs, cats) do the same as well.

If human sleep talks, why not animals?