good night, sleep tight, don't let the bedbugs bite
A singsong rhyme used to express good night wishes to someone, especially a child, when going to bed. 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: "Good night, sleep tight, don't let the bedbugs bite!" B: "Good night, sweetheart." When my dad had to work late, my grandma would tuck me in and say, "Good night, sleep tight, don't let the bedbugs bite."
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