How CI Fiber works:
Inside the fabric are special functional fibers with microparticles of minerals. When the blanket is heated by your body heat: the fiber absorbs some of the heat, "transcodes" it into far infrared radiation (FIR), and this is then gently emitted back to the skin surface.
This radiation occurs naturally in human body heat and is used, for example, in infrared saunas or some rehabilitation technologies. The result is a pleasant, even heat and gentle stimulation of microcirculation, which can contribute to:
a feeling of relaxation of the muscles and the whole body,
faster regeneration after a hard day,
more comfortable, restful sleep.