Purchased it a week ago i am in Bad Bad pain every time i get on it i loose tract of time i do not wan to get off i loose all my pain when on it Fractured T12 Spine I also have Inpenjment of the smolders and it is truly getting better also have arthritis like everyone else seems to ease it I purchased a Beamer 3 years ago i tried to return it they said i could after 4 weeks when i went to return it they said no good only returnable from when i ordered it but it took 1 week for delivery after a long fight they took it back it gave me an adverse affect after 3 weeks now i have found the Great wave mat so much better so far with 90 day guarantee i never want to return it