Walker
Sam, like all hobbits, has always had a knack for finding soft sleeping spots that are free of stone. Here, though, in Moria, there are no places free of stone.
He fusses at Frodo's bed and tries to ignore how vulnerable the open vault behind him makes him feel.
It was easier in the wilds, where there are bushes and trees. A hobbit can always vanish in those places. Any bush or tree can offer shelter. Any dip in the earth can become a hiding place.
He doesn't know how to walk in Moria.
His feet ache for the Shire.