There is a Christian bedtime story where I'm from. In the end it says something like "and you'll wake up in the morning if god wants you to". wtf what if god doesn't want me to wake up tomorrow.
It is, or at least was, one of the most famous German lullabies (Guten Abend, gut' Nacht). The music is from Brahms, wo made it famous. It started as a regional folk poem tho.
Huh, you are right I've heard that quite a lot as a child. Either my family left that out or my memory is faulty. That would not be surprising of course