No. If you take/drink tea at night it might/will keep you awake.
Student or Learner
If you take tea at night, sleep goes away. Is the sentence correct?
If sleep were to "go away" (not a phrase we use), it would suggest that you were asleep in the first place. The problem with drinking tea or coffee at night is that the caffeine stops you from falling asleep.
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.