Since the 1980s, researchers have known that all insects, including bees, have a form of rest that closely resembles sleep. Just as humans do, bees require rest, despite significant differences in brain size and levels of mental functioning between the two species. In an attempt to explain the same sleep requirement, researchers Ada Eban-Rothschild from Stanford University and Guy Bloch from the Hebrew University of Jerusalem examined the effects of sociability on the sleeping habits of bees. They found that increased sociability resulted in more hours of sleep for their honeybees.