You may be surprised to find out that the mattress you are lying on could in fact be
acting as a radiation antenna. This is a problem because an antenna will amplify electromagnetic waves, and some electromagnetic radiation has been linked to certain types of cancer. You don't want to be spending a third of your life lying in an electromagnetic field, yet this is exactly what you are doing if your mattress has any metal in it.
Which mattresses could act as an antenna?
If you have any metal in your mattress or base (e.g. the coils in a box spring mattress), that metal can act as an antenna that amplifies any FM or TV radiation of certain frequencies. The weak electromagnetic waves are captured and then amplified by any metal objects of specific length sized to match the wavelength of a specific frequency of electromagnetic radiation (EMR). Any piece of metal which has similar, half or one quarter of the wavelength of an electromagnetic wave of a specific frequency can act as an antenna. It doesn't have to 'look' like an antenna to behave in the same way.
What is the real-life evidence for this mattress problem?
Researchers noticed that in Japan, the rates of breast cancer and prostate cancer are much lower than in Western countries. A plausible reson for this difference in cancer levels could be that
the beds are different. In Japan, futons are the usual bed of choice whereas spring mattress and box spring are more commonly used in Western countries such as in the North America. A futon does not have any metal in it, while a spring mattress contains a lot of metal inside. Thus, researchers are speculating that the electromagnetic field of a spring mattress in combination with a box spring could be causing an increased risk of cancer.
Of course, there could be many other differences between Japanese and Western lifestyle besides the beds. Therefore, it is not 100% certain that the electromagnetic field of a box spring mattress is the main cause of the increased breast and prostate cancer rates in Western countries.
However, there are some additional evidence linking electromagnetic radiation with cancer. One of these is the link seen by researchers who noticed an increased risk of melanoma in areas where there were a lot of FM or TV transmission towers. Such towers broadcast large amounts of electromagnetic radiation.
This situation is a complex one and we need to be aware that there is still uncertainty over the correlation between cancer risk and electromagnetic radiation. A review of many studies suggests that the link depends on the type of cancers and
the type of electromagnetic radiation. Thus, certain types of electromagnetic radiation may cause certain types of cancers, but not other types.
In any case, we are concerned with eliminating the antenna effect off the mattress. Clearly this will be the safest thing to do.