E-Textiles for Health Monitoring: Off to a Slow Start, but Coming Soon

Smart technology is in cellphones, televisions, cars, and home appliances, but smart textiles haven't inundated the market yet. While engineers have been developing new and interesting ways to marry electronics and fabrics for several years now, the average person isn't wearing e-tights to audit vital signs during a workout, switching to electronically enhanced bed sheets to track sleep patterns, or adding smart base layers to the everyday wardrobe. If the technology is moving forward as rapidly as it appears to be, why aren't e-textiles flooding the market?