A memfoam mattress is not easy to move, so it implies that Joe's body is not easy to move either or unwieldy.
Context: Joe, after being pushed and nudged, rolls his cold crampy body unwieldy
Hypothesis: Joe, after being pushed and nudged, rolls his cold crampy body, like a a memfoam mattress, into a sitting position.

Given this context, is the hypothesis true (Yes/No/I don't know)?