Do you say 'bye byes' or 'nigh nighs'?

[Pixienott0005]

When referring to a baby going to sleep, which do you say.

We say its time for bed and when we lave them say bye bye/good night depending which they say to us.

Night, have a nice sleep.

When DD was small I used to say a variety of things, including 'Night sweetie pie' . On e night I tripped over it and said 'Nightypie' which stuck. We still say it. DD is 20.

Nos da, caru ti