When I put my toddler to bed, I start by talking with her about her day and all the things that she did, like playing with the dog or visiting her grandma. Then I sing her a few lullabies. There are four of them, always presented in the same order, so that when I finish the fourth, she says "Bed." She knows the routine and thus being placed inside the crib is not a surprise.
The first lullaby is this one, which is the theme song to the Canadian science fiction TV show Lexx. The lyrics translate from Brunnen as follows:
Fighters of the Fight
For their home and their heart
We fighters will win or die
Forever we are Brunnen G
What lullabies do you sing your children?