Definition of sleep tight in English:

sleep tight

phrase

  • usually in imperative Sleep well.

    ‘‘Goodnight, then. Sleep tight’’
    • ‘With Frank on the board, corporate managements can sleep tight in the knowledge that Frank won't have a clue what's going on.’
    • ‘Goodnight sweetheart, sleep tight and don't let the bed bugs bite.’
    • ‘‘Goodnight, sleep tight,’ I whispered, for lack of anything creative, and winced at the cliché.’
    • ‘So good night, sleep tight, hope the bugs don't bite.’
    • ‘‘‘Night, guys,’ I said, before he could get another word in edgewise, and after hearing two normal responses and a ‘nighty-night, sleep tight!’’
    • ‘It is incomprehensible to most westerners how anyone could sleep tight in a room six feet by four and a half by three and a bit.’
    • ‘Goodnight girls, sleep tight, help yourselves to anything in the car.’