Warmth for cold seasons: The fleece side is the ideal sleeping surface in colder seasons because wool is warmer. The quilted wool side also rejuvenates the mattress and helps promote a healthier, more restful night's sleep. All natural and breathable: Extra cozy and soft, our wool mattress toppers are designed with sleep in mind. Turn your mattress into a comfortable sleeping surface and enjoy the natural hypoallergenic and temperature control benefits of wool. Natural heat balance: Wool is temperature regulating, helping you stay warm when you are cold and cool when you are warm. It supports comfort on cold winter nights. Comfort and support: For back, hip and joint problems, this topper provides immediate comfort and support and can help you achieve deeper, more restful sleep. Wool bedding is associated with enhanced sleep quality. Use scenario 1: In winter, place the fleece side up to maximize warmth and plush comfort on a chilly night. Use scenario 2: Allseason comfort and hygiene: the natural breathability and hypoallergenic properties of wool help maintain a comfortable sleeping environment year round. Use scenario 3: Upgrade a standard mattress for better support: ideal for sleepers with back, hip or joint concerns and for achieving deeper, more restorative sleep.