• Lessen the thermal incompatibility between you and bed partner• Reduce overheating• Pillows absorb heat• Balance temperature swings• Engineered to mitigate effects of hot flashes• Removable, washable cover• 300-thread count• hypoallergenic cotton• pillow density/firmness - Medium•ounces of fill per size - Standard/Queen 31oz & King 45ozPLEASE NOTE: This item is a personal care item and is not returnable.