The invention provides a temperature-regulation apparatus with a segmented metal-containing layer. The metal-containing layer has an electrically insulating coating and a plurality of mutually electrically insulated planar metal segments to increase insulation by reducing thermal emissivity whilst minimizing the hazards of an electrically conductive layer. The temperature-regulation apparatus may comprise a blanket which may be used to actively supply temperature regulated air for regulating the temperature of a subject, in which case it includes at least one port, or it may be used to passively maintain the temperature of a subject, or it may comprise a temperature-regulation garment.
