aight i just got off work so my brains a tad fried so i hope this makes sense lol: does grimm ever do the "turn in circles to get comfy" things a lot of animals do (and lucy and yarrow, for that matter. idk if bees curl up to sleep tbh)
the first thing i remembered upon seeing this ask was, for better or worse, this post
but to actually answer your question, it doesn't lol. at least, not the the full extent of turning in circles, but it will sometimes sort of "paw" at pillows or blankets before laying down if it's alone (or around yarrow)
over the course of their life, grimm hasn't really had to opportunity to be picky about their sleeping situation to the point where having a consistent bed to sleep in is...kinda foreign to them. they also don't really sleep curled up unless it's a bad night. that all being said the two of them are Really clingy in their sleep on account of. the everything
yarrow doesn't have any like, honeybee sleep habits (at the moment) but his secondary arms do curl up when he's unconscious! those don't have any bones in them, so it was inspired by how a lotta insects curl up when they die and i figured being unconscious was...similar enough due to the lack of muscle control lmao
bees do curl up when they sleep though! and sometimes they do it in flowers it's very very cute ;v;
as for lucy, she's a kid with a fluffy tail and kind of a rough go of things so she usually hugs it close in her sleep. basically a built-in comfort object. she sleeps curled up pretty tight like you'd expect a small animalchild to
i also think she'd thrive with one of those giant ikea or costco bears. or whatever in-universe equivalent lol
that's all i can think of now, thank you a ton for the ask!!!! :D <3