Total safety
Electromagnetic fields are everywhere. Precautions should be taken, without being afraid or thinking that clearly harmless objects such as spring mattresses and metal bed bases are dangerous – there is no power in them and no generation of electromagnetic fields is possible.
Besides that, all mattresses are surrounded by padding, fabrics and insulating materials that shield them from any “bounce effect” of any waves emitted by external electrical devices nearby. As the metals used for springs or bed bases are not “ferromagnetic”, it wouldn’t be rational to be scared of potential dangers from the bed system. On the other hand, we are continuously in direct contact with devices (mobile telephones, electrical household appliances, Wi-Fi etc) that do emit waves. Nevertheless, such electromagnetic fields are not “ionizing radiation”, i.e. they don’t have the energy and characteristics required to alter human cells and tissues – they may only produce warming.
In any case, the wave levels we are normally exposed to are so low that it is perfectly reasonable to think that there are virtually no risks for humans. Even bed systems equipped with power mechanisms (bed bases with motor-driven movements, mechanised sommier beds and mattresses with advanced IR technology) may only generate a weak signal that is much lower than any percentage specified by standards and is classified as insignificant.