Advanced cooling with natural cashmere wool and horsehair. Multiple premium natural layers work with our advanced cooling system to keep you at an optimal temperature all night. Slip into your most luxurious, refreshing sleep yet. Key cooling features: Cool Touch Quilted Tencel Cover features breathable, cooling yarns for a refreshingly cool feel against your skin. Climate Fiber Layer provides cushioning and promotes enhanced air circulation for superior breathability. Cashmere Wool Blend regulates temperature and pulls moisture away—naturally cooling in summer and insulating in winter. Talalay Latex Response Layer provides responsive support with exceptional breathability without retaining heat. Horsehair Fiber Layer features hollow, breathable fibers that help regulate temperature for deep, uninterrupted sleep. Cloud Breeze™ Technology circulates fresh, cool air throughout the mattress, actively dispersing heat for refreshingly cool sleep all night long.