Sleep is essential for all animals. It gives necessary rest to our body and mind. In a way, plants sleep too; but not in the way we do.

Plants sleep when it is dark and there is no Sun. Since, in the absence of the Sun, they cannot make food, and photosynthesis is not possible. Therefore, during night, plants close down their stomata and only respiration remains in them, much like animals. Some plant species even fold their leaves in the dark.

Organisms have adapted to the rhythm of night and day. Scientists have been studying the day and night rhythm in plants. They say that plants sleep during the night. Flowers open in the morning and leaves close in the night. Carl Linnaeus observed that plants continued this behaviour even when they were confined inside a room away from the Sun.

Some big trees reportedly droop downwards in sleep during night. When dawn approaches, they come back to their old self, the same way we get up in the morning.

 

Picture Credit : Google