mountian pygmy possum

Tiny and furry but on a mission, I skitter into the bush in the hope of finding my berries and seeds before the depths of winter become my sleep and as the world is painted white. Tiny and furry I snuggle in the tree trunk I call my home, hibernating is exhilarating knowing I get the rest I deserve, I get comfy but the silence is interrupted by the giants' laugh banishing the silence as they shoot down the icy mountain up above. 3 months are over my sleep is free and I have a whole food pile waiting just for me, what am I? Mountian pygmy possum.