Question

why do we need sleep

Answer 1

our body needs rest after doing many works.during sleep our body doesn't work.so it performs other activities

Answer 2

hey dear friend!!!!
we need sleep for rest. Sleep plays an important role in your physical health.
Sleep makes you feel better, but its importance goes way beyond just boosting your mood or banishing under-eye circles. Adequate sleep is a key part of a healthy lifestyle, and can benefit your heart, weight, mind, and more.

i think it may help u!!!!