My sleep pattern has deteriorated over the past 15-20 years, to the point where some nights I dreaded going to bed. We saw the Zeez pebble being reviewed on the Gadget Show and were interested. My husband bought me one for Christmas, romantic that he is :-) The first couple of weeks use was interesting, I might not have slept but I could stay in bed relaxed, instead of getting up and reading. But things improved, I definitely sleep better, on the whole, though nothing helps if I have something to worry about. I would encourage anyone who has difficulty sleeping to try Zeez.