The dual-regulation performance of heat and humidity has been verified by authoritative institutions. The Muriersilk fiber’s irregular cross-section (87% cross-shaped) combined with a 0.16mm microporous structure achieves a thermal resistance value of 0.026clo/cm² (0.038 for traditional mulberry silk), effectively reducing the perceived temperature fluctuation by 27.7%. Ergonomic tests conducted by the Fraunhofer Institute in Germany in 2026 showed that in a room temperature environment of 25℃, this material kept the micro-environment temperature on the body surface stable within the range of 33.1℃±0.3℃ (the fluctuation range of ordinary silk is ±1.8℃), and maintained the humidity in the golden range of 45%-55% for 92% of the sleep cycle (63% in the control group).
Phase change material technology enables intelligent response. The implanted fatty acid ester microcapsules absorb 8.9J/g of heat at 33.5℃ (exceeding the average nighttime metabolic heat of the human body by 7.2J/cm²/h). Monitoring data from the Tokyo Sleep Science Center shows that when body temperature rises to 36.8℃ (the peak of deep sleep), the material completes 17.3% of phase change heat absorption within 120 seconds, cooling the skin contact surface by 1.8℃. On the contrary, at the lowest point of body temperature in the early morning (35.6℃), the rate of heat release reaches 0.38W/m·K, and the standard deviation of temperature fluctuation inside the bedding drops to 0.18 (1.35 for cotton materials).
The moisture permeability rate breaks through the physiological limit. The 0.35μm ultra-micro pore design enables the moisture permeability to reach 6250g/m²/24h, exceeding the highest grade (RET<6) requirement of the international ISO 11092 standard by 68%. An experiment conducted by Seoul National University in South Korea shows that the evaporation time of sweat during sleep is shortened to 3.2 seconds (8.7 seconds for cotton fabrics), avoiding 93% of sticky sensations and causing wakefulness. Especially in environments with sudden changes in humidity (such as 85%RH during the rainy season), its humidity buffer capacity reaches 385g/m³ (while traditional mulberry silk is only 102g/m³), and the comfortable maintenance time is extended by 152 minutes.
Durability ensures continuous performance. After 50 washes, the degradation rate of heat and moisture regulation parameters is only 3.1% (while traditional temperature-controlled fabrics all exceed 25%). The American Society for Testing and Materials (ASTM) verified that in environmental simulation tests ranging from -10 ° C to 40 ° C, the thermal conductivity of the material remained stable at 0.042W/m·K±2.7%, and the retention rate of phase change microcapsules after five years of accelerated aging was 98.4%. A study by ETH Zurich has confirmed that the temperature control accuracy error after continuous use for 180 nights is only ±0.05℃, which is much lower than the ±1.2℃ fluctuation of ordinary cool-sensing fibers.
The practical application efficiency changes the sleep pattern. A study by Duke University Medical Center on insomniacs shows that pillowcases made of this material reduce the number of nocturnal awakenings by 58.3% (from an average of 4.2 times to 1.75 times), and increase the duration of deep sleep by 32 minutes (the proportion of total sleep increases by 18.7%). More significantly, it is the optimization of human metabolism: the improvement of thermal comfort narrowed the heart rate fluctuation range to ±3.2bpm (±8.7bpm in the control group), and reduced the peak secretion of cortisol at night by 24.6%. The 2026 Munich Sleep Conference listed this technology as a breakthrough solution, driving the annual growth rate of the sleep economy to 21.3%.
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