Magnetic Mattress Pads Research Study

The mattress pads used in this study were typical full-size pads containing 124 permanent ferrite magnets with magnetic field strengths of 750-950 gauss each. The pads themselves were made oil two sheets of felt with the magnets sandwiched between them. The felt sheets were then wrapped in a cloth cover. 'The total number of subjects of this double-blind clinical experiment was 43 l (216 male, 215 female). 375 subjects were given the magnetic pads, 56 were given non-magnetic pads. None of the 431 subjects knew which pad they were sleeping on. Subjects selected for the experiment were those with chief complaints related to:

  • Neck and shoulder pain
  • Back and lower back pain
  • Back pain (general)
  • Lower limb pain
  • Insomnia
  • Fatigue

 To determine the presence of any side effects, blood pressure, hemoglobin, number of erythrocytes, and number of leucocytes were examined before and after the use of the mattress pads. Besides blood sedimentation, and TP, COL, ALP, GOT, GPT, Na, and K were also examined, as were functions of the kidneys, liver, pancreas, and the entire circulatory system.


                                                                       Positive                                               No#
Symptom                        Cases                   Results                 %                           Results                %


Neck and                           66                          47                       71.2                           19                     28.8
shoulder pain
Back and lower                  76                          61                        80.3                           15                    19.7
back pain
Back pain                           31                          25                        80.7                          6                      19.3

Lower limb pain                 68                          54                          79.4                        14                       20.6

Insomnia                            70                          61                          87.1                          9                       12.9

Fatigue                               64                          53                          82.8                         11                      17.2

Out of 375 total subjects with symptoms, 301 (80.27%) reported positive results. 74 cases (19.73%) reported no results.

Time of Response

The percentage of subjects who realized the effect of the magnetic mattress pad within 3 days:

Neck and shoulder pain                  46.9%

Back and lower back pain               50.0%

Back pain                                         38.7%

Lower limb pain                                54.4%

Insomnia                                           64.3%

Fatigue                                              57.8%                                              

Out of 375 total subjects who slept on the magnetic mattress pads, 200 (53.3%) realized the effects within 3 days. Over 70% realized the effects within 5 days.


Dr. Shimodaira's conclusion of this year-long study conducted in 3 of Japan's foremost hospitals: "The magnetized health mattress pad is proved to be effective on neck and shoulder pain, back and lower back pain, back pain, lower limb pain, insomnia, and fatigue, and to have no side effects."