Hello all,
I just ordered this CD and have found it useful in getting my ds to sleep (and keeping him asleep) -
www.hypnosishealthcare.com/babysleepnature.html
Unlike other white noises (vacuum cleaners etc!) it is also quite easy on the ear, it's a running water / rainfall sound, and it's also just one 60 min track so easy to use.
Just wanted to post in case anyone else finds it useful!