Proverbs 6:4 in the World English Bible
Give no sleep to your eyes, nor slumber to your eyelids.
Context
3 Do this now, my son, and deliver thyself, when thou art come into the hand of thy friend; go, humble thyself, and make sure thy friend.
4 Give not sleep to thine eyes, nor slumber to thine eyelids.
5 Deliver thyself as a roe from the hand of the hunter, and as a bird from the hand of the fowler.