Sleeping bag Darian
HF (High Frequency)
to shield high frequency electromagnetic waves
They are highly efficient and and at the same time very agreable to touch. While travelling the use of a sleeping bag is the best and easiest way to protect yourself.
Moreover you can sleep in your own sheets.
Shielding up to 97% of the radiation
according to: IEEE 299-1997
ASTM D 4935-89