What do you play to your kids when they go to bed ?

filtered pink noise loop which blocks out most of the traffic noise and other noises around the house.
When we travel I set something up in reaper on my macbook for us.

Get a routine going and stick to it. That really helps get them in bed on time every night.
 
My wife's nephew goes to sleep with either Images and words or Awake playing.
Not a bad effort for a 7 year old!

I've fallen asleep to Images and Words a few times. As for the daughter, she seems to like Derek Sherinian stuff.