Wiktionary
beddy-bye
alt. (context idiomatic baby-talk childish English) bedtime for a toddler, go to sleep, go to bed. n. (context idiomatic baby-talk childish English) bedtime for a toddler, go to sleep, go to bed.
Usage examples of "beddy-bye".
The other argument appealed to me more: go beddy-bye and wake up in a different world.
People like that are going to be beddy-bye at two in the morning, weekday.
Never mind, thinks I, it'll soon be ho for the hunting lodge and beddy-byes, and then we'll bring the roses back to those pearly cheeks.
Little did Julia suspect that Booth would mousetrap her champagne, just as she had mousetrapped her chaperone's beddy-bye slug of wartime white lightning, with chloral hydrate.