Shielding Mattress and Sleeping Bag
A shielding floor mat and shielding sleeping bag complement electromagnetic shielding around a sleeping area in two different ways. The sleeping bag is a portable textile product that encloses the body and is designed to attenuate high-frequency electromagnetic fields. In this category, the shielding mat is not a mattress for sleeping on, but a conductive floor underlay placed beneath a bed canopy. Its purpose is to extend the shielding structure across the open underside of the canopy. Read more...
• We also recommend shielding the canopies from below to achieve a complete faraday cage
• With 42 dB attenuation optimal for all canopies made from VOILE, NATURELL and SILVER-TULLE
• Made from our shielding fabric STEEL-TWIN
• The stainless-steel-side should face towards the floor, the white cotton-side upwards
• Attenuation: 42 dB
• Size single bed (U1S): Width 140 cm, length: 240 cm
• Scope of supply single bed (U1S): 1 sheet Steel-Twin with sewed on Velcro areas
• Not included in the scope of supply the grounding: 1 grounding plug GP1, 1 grounding connector GCV, 1 cable GL500
• Weight: 850g
• We also recommend shielding the canopies from below to achieve a complete faraday cage
• With 42 dB attenuation optimal for all canopies made from VOILE, NATURELL and SILVER-TULLE
• Made from our shielding fabric STEEL-TWIN
• The stainless-steel-side should face towards the floor, the white cotton-side upwards
• Attenuation: 42 dB
• Size double bed (U2S): Width 270 cm, length: 240 cm
• Scope of supply single bed (U2S): 2 sheets Steel-Twin with sewed on Velcro areas.
• Not included in the scope of supply the grounding: 1 grounding plug GP1, 1 grounding connector GCV, 1 cable GL500
• Weight: 1,6kg
• Shielding sleeping bag made from Steel-Gray for HF shielding
• This sleeping bag is a competitive alternative to canopies and perfect to be used for travelling
• Size: Width 90 cm, length 220 cm
• Attenuation: 42 dB
• Colors: Gray
• Raw materials: 40 % cotton, 30 % polyester, 30 % stainless steel
• Surface conductivity: 100-800 ohm (square resistance)
• Weight: 1,5 kg
• Shielding bedding made from Steel-Gray for HF shielding
• The bedding set includes a sheet and a duvet cover
• The sheet is made of Steel-Gray and can be coverd with a common sheet if required
• Size sheet: 240 cm x 140 cm
• Size duvet cover: 200 cm x 135 cm
• Attenuation: 42 dB
• Colors: Gray, light gray
• Raw materials: 40 % cotton, 30 % polyester, 30 % stainless steel
• Surface conductivity: 100-800 ohm (square resistance)
• Shielding thin blanket made from Steel-Gray for HF+LF shielding
• Easy and quick protection on the couch, in the bed, on holiday, on business trips or while playing console games
• Steel-Gray is a compact woven cotton/polyester/stainless-steel fabric
• Size: 200 cm x 140 cm
• Attenuation: 42 dB
• Colors: Gray
• Raw materials: 40 % cotton, 30 % polyester, 30 % stainless steel
• Surface conductivity: 100-800 ohm (square resistance)
• Weight: 600g
• Shielding thin blanket made from Black-Jersey for HF+LF shielding
• Easy and quick protection on the couch, in the bed, on holiday, on business trips or while playing console games
• Black-Jersey has a very high attenuation of 40 dB for a fabric with 83 % cotton content
• This blanket is incredibly soft and cuddly against the skin
• Size: 200 cm x 140 cm
• Attenuation: 40 dB
• Colors: Black
• Raw materials: 83 % cotton, 17 % silver thread
• Surface conductivity: 3 ohm (square resistance)
•Weight: 600 g
• Shielding thin blanket made from Black-Jersey for HF+LF shielding
• Easy and quick protection on the couch, in the bed, on holiday, on business trips or while playing console games
• Black-Jersey has a very high attenuation of 40 dB for a fabric with 83 % cotton content
• This blanket is incredibly soft and cuddly against the skin
• Size: 100 cm x 140 cm
• Attenuation: 40 dB
• Colors: Black
• Raw materials: 83 % cotton, 17 % silver thread
• Surface conductivity: 3 ohm (square resistance)
•Weight: 600 g
• For a complete Faraday cage, canopies must also be shielded from below
• This canopy base consists of three sheets of soft fleece bonded to a diffusible micro-needled aluminum foil
• Attenuation: 111 dB
•Dimensions: 3 sheets 90 cm width and 280 cm length; Results in a shielding area of 250 cm x 280 cm including 10 cm overlap
• Materials: PP fleece / micro-needled aluminum foil
• SD value: 0.034 m
• VOC emissions: 0 (class A+)
• Scope of delivery: 3 panels BU280 90 cm x 280 cm. No room decoration and no canopy included
• Weight: 5kg
Shielding floor mats and sleeping bags for targeted protection around sleeping areas
How can the appropriate component of an EMF-shielded sleeping area be selected?
The sleeping bag can be used when a portable textile product is required instead of a bed canopy, including during travel. The floor mat is an accessory designed for use with a canopy and must be positioned beneath the sleeping area, directly inside the lower perimeter of the canopy. The sleeping bag surrounds the user, while the conductive floor mat forms the lower shielding plane of the canopy installation.
Application criteria for shielding sleeping bags and floor mats
- The sleeping bag can be used during travel or as an alternative to a bed canopy.
- The floor mat complements the shielding performance of a canopy from below.
- The sleeping bag is designed for one person and measures 90 cm in width and 220 cm in length.
- The technical dimensions of the double-bed floor mat are 270 cm in width and 240 cm in length.
The selection depends on whether a portable standalone product or a lower shielding surface for a bed canopy is required.
Which electromagnetic fields are these products designed to shield?
Documented measurement range for radio-frequency shielding
Both product types have a nominal shielding attenuation of 42 dB at 1 GHz. High-frequency measurements were performed between 600 MHz and 40 GHz in accordance with procedures based on IEEE Std 299-2006 or ASTM D4935-10. The measurement curves show the average values of the tested samples with a tolerance of +/- 2 dB. Shielding attenuation varies depending on frequency.
Which attenuation values were measured for the conductive textiles?
For the stainless-steel-fibre shielding fabric used in the sleeping bag, the single-layer expert measurement recorded values of 41-43 dB for the tested radio services between 470 MHz and 3700 MHz. The measured attenuation was 40 dB between 5150 MHz and 5350 MHz, 36 dB at 20 GHz, 35 dB at 30 GHz and 33 dB at 40 GHz. For the Steel-Twin material used in the floor mat, the measurement table lists 40 dB between 470 MHz and 750 MHz, 41-44 dB between 790 MHz and 3700 MHz, 42 dB between 5150 MHz and 5350 MHz, and 41 dB between 20 GHz and 40 GHz.
HF and LF shielding in the two product designs
- The sleeping bag is specified for shielding high-frequency electromagnetic fields.
- The floor mat shields high-frequency electromagnetic fields and low-frequency alternating electric fields.
- The electrically conductive surface of the floor mat must be connected to functional equipotential bonding.
The documented shielding ranges do not include attenuation of low-frequency magnetic fields.
Construction and application of the shielding sleeping bag
How is the sleeping bag made from conductive textile closed?
The grey sleeping bag is made from stainless-steel-fibre shielding fabric. A silver-plated zip is installed along the side and extends approximately halfway down the length of the sleeping bag. The head section can be closed with an elastic drawstring while leaving the face uncovered. A removable cotton liner is attached with hook-and-loop fasteners and separates the skin from the coarser outer fabric.
Material structure of the stainless-steel-fibre shielding sleeping bag
The outer textile consists of 40 percent cotton, 30 percent polyester and 30 percent stainless steel. The specified square resistance is 100-800 ohm. The stainless-steel-fibre material is more durable and structurally stable under intensive movement than silver-fibre textiles. The outer layer may feel coarse, similar to a woollen jumper, so the removable cotton liner or suitable sleepwear can reduce direct contact with the skin.
How does the shielding floor mat complement a bed canopy?
Correct layer orientation of the Steel-Twin floor mat
The double-bed version consists of two Steel-Twin panels fitted with sewn hook-and-loop connection surfaces. During installation, the stainless-steel side must face the floor and the white cotton side must face upwards. The panels must be placed directly beneath the canopy. Because of the thickness of the sewn edges, the product is not designed for installation underneath a carpet.
Why is a conductive floor underlay placed beneath a bed canopy?
A bed canopy is open on its underside. The floor mat provides shielding across this lower plane, allowing the canopy and the conductive underlay to form a closed Faraday cage. The Steel-Twin underlay, with a nominal attenuation of 42 dB, is specified for canopies made from Voile, Naturell and Silver-Tulle fabrics. The double-bed package contains two panels. Grounding accessories are not included in the scope of delivery.
Shielding attenuation, conductivity and textile structure
What does the nominal attenuation of 42 dB mean?
The value of 42 dB stated on the product pages applies at a frequency of 1 GHz. The measurement compares the power density in front of the sample with the power density transmitted through it. According to the conversion table, 40 dB corresponds to a shielding effectiveness of 99.99 percent and a power transmission of 0.01 percent.
When are grounding and functional equipotential bonding required?
Connection requirements for groundable shielding products
The electrically conductive surface of the floor mat must be integrated into functional equipotential bonding. The double-bed version requires a separately purchased set consisting of one grounding plug, two hook-and-loop grounding connectors and two 5 m grounding cables. The sleeping bag is also groundable, and the associated accessories include a hook-and-loop connector, a grounding plug and a 5 m cable.
Accessories for functional equipotential bonding
- A hook-and-loop grounding connector for the sewn connection point on the textile product.
- A grounding cable for connecting the individual components.
- A grounding plug for the specified connection system.
The accessories must be selected according to the required quantity for the specific product configuration.
Dimensions, positioning and required accessories
Dimensions of the shielding floor mat and sleeping bag
The shielding sleeping bag measures 90 cm in width and 220 cm in length and is grey. Its construction provides sufficient internal space for prolonged use. The technical dimensions of the double-bed floor mat are 270 x 240 cm, and the product consists of two panels fitted with hook-and-loop connection surfaces. Grounding accessories are not included with the floor mat.
How should shielding textiles be cleaned and maintained?
Care of stainless-steel-fibre shielding fabrics
Both textile products can be washed at temperatures of up to 60 C. They can be ironed without steam at setting 1 and tumble-dried at a low temperature. Bleaching and dry cleaning are not permitted. Only special detergent for shielding textiles that is free from enzymes and bleaching agents may be used.