I've done a few days....you need sleep. You start to go delirious if you dont.
Matt the Funk Reviewed by Matt the Funk on . Why do humans actually need to sleep I heard once (not sure if its true) that there was one man who 'never' slept because he believed that humans did not actually need to and we only do because we are used to it from when we are a baby.. What is the actual reason we need sleep is it because our brains need rest.. well say if you didnt sleep for 2 days or 4 days your brain would still work just as good right? Rating: 5