Behavior One of my guinea pigs randomly goes into what we call "statue mode"?

[edikit]

She's 100% normal and happy otherwise. Eating, drinking, pooping just fine, has lots of energy, etc.

Just... sometimes I'll walk into her room to see her standing halfway up her little stairway or something and frozen completely solid. Not scared though, almost like she's just zoned out or sleeping or something. But once she "snaps out of it" she completely returns to normal.

Is she sleeping? None of our other pigs do this. Pic for reference (she was standing like this for a good 5 minutes):

(Just in case anyone is concerned about this cage, this is just one small portion of their overall space. We have a whole room set up for them!)

 

[SunnyPigs]

Does she most often do the freezing when there is an unfamiliar sound or such? You can look a this for more info : https://www.guineapigmanual.com/guinea-pig-behaviour/