get 10 more pic from google Giraffes are the tallest animals around. They are herbivores that are often seen nibbling on tree leaves. These prey animals are not often caught sleeping that’s why researchers until the 1950s believe that giraffes don’t sleep at all. Today, scientists know for a fact that giraffes have the shortest sleep requirements of any mammal. These animals just need about 30 minutes of sleep every day.This habit evolved out of need. Because these long-necked mammals find it hard to lie down or get on their feet quickly, sleeping entails danger from predators. So, take a look at these rare captured moments of giraffes sleeping. Not many people have seen how giraffes sleep. Comment below on which of these positions seem to be the comfiest!