don't let the bedbugs bite

cliché Sleep soundly and well. Part of the sing-song rhyme "good night, sleep tight, don't let the bedbugs bite," usually said to a child. I'll see you in the morning, love. Don't let the bedbugs bite! A: "Now, you're all tucked in and ready for dreamland. Good night, sleep tight, don't let the bed bugs bite." B: "Night night, Daddy." A: "Well, sleep tight, Sis, don't let the bedbugs bite!" B: "Mom! He's still gloating over getting the bigger bed!"