An expert in energy conservation, they move only to find food and or as needed for other natural body functions. This is necessary because their diet and digestion does not provide them with much energy. The climbing speed of the average sloth when not threatened with danger is about 6 feet per minute. They sleep the majority of any 24 hour period. They do not come down out of their tree  homes too often because their long lanky limbs, perfect for hanging, cannot support their body weight on the ground so they have to drag themselves with their front arms.