Will you read the children a 'bedtime story'? [=a story that is read or told to children when they go to bed]
The children are still up? It's way past their 'bedtimes'.
It's almost 'bedtime'.
(..) ask for Mr. Terwilliger... ...Mr. Howell or Mr. Stanton. These gentlemen right there. Questions? Do you leave the light on after bedtime? Because I get a little scared in the dark sometime... ...if it's a strange place. It stays pretty bright around here all night long. (..)1999 The Green Mile