Bedtime for a toddler, going to sleep, going to bed.(noun)
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Use "beddy-bye" in a sentence
"Time for beddy-bye now, big boy, and someday, if you're very, very good, Santa Clause just might bring you a brain for Christmas."
"Brendon, who has a teaching credential remember, assumed that the lights just going out in a windowless house, plunging them all into total darkness, was merely Big Brother's way of telling them it was time for beddy-bye."
" Red wine and candlelight would complete the illusion of a romantic anniversary dinner, and then, as she had come to call her plan, “beddy-bye.”"