A bunch of nature type recordings on YouTube, most of 'em an hour or more in length.
Waterfalls, birds, that kinda stuff.
This link will take there, then look along the right hand side.
Pair of headphones and I bet you'll be asleep before ya know it .. good luck, and sweet dreams ;-)
404... I guess the link got removed :/
THANK YOU for this link. I’m listening to relaxing music & watching a beautiful slide show of a Zen Garden.