Create your own sleep sanctuary! By using either a bed canopy or shielding your walls with Swiss Shield Fabrics, you can greatly reduce microwave exposure levels to create a safer home environment, with more restorative sleep. Swiss Shield fabrics are certified nontoxic and do not require grounding. Shielding effectiveness will not wash out like the canopies/fabrics made with metal on the 'outside' of the fabric. Swiss Shield fabrics are surface-insulated to allow for washing without shielding loss. Be cautious with other fabrics that have exposed metal as this material can rub off, become airborne and cause irritation or health issues. When washed, the shielding effectiveness of fabrics with exposed metal will significantly degrade.