Wool + cotton mattress protector the natural breathability of wool combines with the cooling properties of cotton to reduce night time overheating for higher quality sleep. If you often find yourself getting too warm in bed, then the minijumbuk sleep cool mattress protector is made for you. using innovative combination of natural cotton and wool, the sleep cool mattress protector increases the flow of air around the body, creating a cooling effect. This improved breathability helps to regulate your bodys temperature for a more comfortable and relaxing sleep. Enjoy the sleep cool difference tonight. sleep better naturally wool has the ability to rejuvenate your body through more restful sleep. Our soft wool fill pulls moisture away from the body to keep you cool, dry and comfortable. This leads to a lower and more consistent heart rate while you sleep. cotton has natural cooling properties and when combined with wool, they provide a more regulated body temperature ideal for people who sleep too hot or too cold. All this adds up to the best nights sleep possible. greater airflow improved airflow around the body keeps you cool and dry throughout the night. The naturally breathability of wool combined with the proved cooling properties of cotton help reduce overheating for a higher quality and uninterrupted sleep.