Just 5 More Minutes of Sleep, Please

January 9, 2019 Lisa Mungovan

Are you still adjusting to getting up early, after sleeping in during your winter break? Human adults need 8 hours of sleep while babies need 16. Bats sleep about 20 hours, and giraffes take brief naps that add up to two hours a day. Dolphins can sleep with half of their brain and just keep swimming!