don't sleep on (someone or something)

don't sleep on (someone or something)

slang Don't fail to appreciate or ignore the significance of someone or something. Don't sleep on this song—it's so good! They may be underdogs, but don't sleep on them in these playoffs.
See also: on, sleep
Farlex Dictionary of Idioms.
See also:
  • don't get me wrong
  • Don’t make a federal case out of it!
  • all in (one's) head
  • don't bet on it
  • don't beat a dead horse
  • discipline
  • discipline (one) for (something)
  • discipline for
  • don't cry before you are hurt