''Sleep is vital for our health and development, just like eating, breathing and drinking''
If you stop sleeping or jump to many nights, you'll start having hallucination, you'll get paranoid very easily. After a few weeks it will become difficult to talk and to literally do anything. As you'll be exhausted it will be difficult to do anything (so you eat less and less) until the point where you have 2 solutions.
First solution, you don't do anything and you end up at the psychiatric hospital or you simply start sleeping again and getting back the sleep you missed. At the end of the story sleeping boost your productivity !
So yeah sleeping is really important... As eating and our environment.
One more sub by the way !