The device moves a magnetic field around me while I sleep. It is just a high-tech rocking chair or cradle. Facts have lead me to the understanding that we use the earth's magnetic field. And that people who do not move enough in a magnetic field like the earth's are unable to maintain good health.
About 20 years ago magnetic blankets were a fad.
Then all life would die during the null periods when the earth's magnetic poles are flipping. Big doubts here.