Sleepy iTunes

After listening to the Solo Piano on sky.fm for a little while, I thought this would make a good thing to listen to while I am trying to fall asleep... but I did not want to have to leave my laptop on the entire time I was asleep.... Enter applescript!

ignoring application responses
    tell application "iTunes"
        open location "http://www.sky.fm/mp3/solopiano.pls"
    end tell

    delay 1800

    tell application "iTunes"
        quit
    end tell

    tell application "Finder"
        sleep
    end tell
end ignoring