These comforters are 100% organic. COTTON SHELL FILLED WITH ORGANIC RAW SILK ALL QUILTED IN. NO SHIFTING, NO BUNCHING UP, NO HOT OR COLD AIR POCKETS. 100% EQUAL DISTRIBUTION OF AIR FLOW ALLOWS THIS SILK AND COTTON COMBO TO ADJUST TO YOUR BODYS TEMPERATURE. CERTIFIED ASTHMA AND ALLERGY FRIENDLY, NO DUST MITES, BED BUGS, NONE OF THE NATURAL ALLERGENS, NO MOLD OR MILDEW, NO BODY ODOR OR SWEAT, FIRE RETARDANT.MACHINE WASH COLD WATER ONLY, TUMBLE DRY LOW HEAT SETTING. SILK WARMS YOU UP BUT WILL NEVER ALLOW YOU TO GET TOO HOT AND NEVER EVER WILL YOU SWEAT. GREAT FOR YOUR SKIN AND HAIR AND HELPS WITH CIRCULATORY PROBLEMS, ASTHMA AND ALLERGIES.