A Tiny Miracle: Sleep well
When a warm story unfolds and sleep well, Korean speakers reach for "잘 자요.". It sounds kind and calm.
Examples
잘 자요. — jal jayo. — Sleep well.
정말 잘 자요. — jeongmal jal jayo. — Really, sleep well
오늘은 잘 자요. — oneuleun jal jayo. — Today, sleep well