After using the Zeez pebble for two weeks my sleep patterns improved considerably and remain improved. I take less time to fall asleep and when I do wake up during the night I fall asleep again quickly. On the odd occasion when I do not fall asleep again quickly I restart the Zeez and this does the trick. I no longer dread going to bed knowing I would have disturbed sleep. The Zeez has made all the difference to how I feel on a daily basis - no longer tired all the time. My Zeez has become a very important part of my life and I would not like to be without it.