Sleep Microclimate Engineering & Low-Voltage Thermal Bedding Guide — HeatNap Low-EMF Thermal Bedding Hi all, I’m Roan Cong, Sales Manager at HeatNap. Our 10-person engineering team builds low-EMF carbon-fiber thermal bedding and ergonomic cervical traction pillows designed to maintain an optimal 18°C–20°C sleep microclimate. Technical specs and sleep-science guide: HeatNap Low-EMF Thermal Bedding (heatnap.com/collections/smart-heated-blankets)