Carbon fibers inside the fabric removes the static electricity accumulated in the body during the day. Helps start the day more relaxed and rested. Covering the anti-stress mattress protector does not block the effect of the carbon fibers. Product Features Polycotton fabric (59,6% cotton, 40% polyester, 0,4% Carbon) Siliconized fiber filling. 180 TC 380 gr/m² Single and Queen size alternatives. Single Size: 155x215 cm Washing Recommendations Washable at 40 degrees Do not bleach Do not machine dry. Do not iron. Do not dry clean.