ThermalSense Temperature Balancing Pillow Case, Set of 2 Cotton Sateen Imported Revolutionary and patented technology Adjusts continuously to your body temperature so you are never too hot or too cold Luxuriously soft 300 thread count cotton sateen fabric Fits standard, standard/queen and queen size pillows Care instructions: machine wash warm, normal cycle, only non-chlorine bleach when needed; tumble dry low; cool iron when needed