Night time , Night is for sleeping purpose when you work more than 12 hours in a single day you feel very tired and exhausted after working mentally and physically you need something like sleep so nature made our cycle of sleeping casual so we need sleep on daily basis , it keeps our mind fresh and make our body fit I have also listen in science is that in our sleep our mind store data in the form of short term and long term memory , #good night #sleep Pic source : https://images.pexels.com/photos/3289156/pexels-photo-3289156.jpeg?cs=srgb&dl=pexels-alex-fu-3289156.jpg&fm=jpg