Happy Lamb Wool Mattress Topper features soft wool woven into an organic cotton backing. It creates a natural sleeping surface, breathable for your body, and may offer significant pressure point relief. Overview This mattress topper is made up of two fabrics that create a natural alternative to sheepskin without the chemical treatment of a tanned hide. Premium Eco-Wool is woven into a backing of organic cotton knit yarns, creating a fleece without the actual sheep-skin. This creates a stable fabric for the wool to stand vertically, supported by the woven cotton backing. Unmatched in softness, the wool fibers stand about 1 inch high. Features & Benefits: Natural fleece: Soft wool woven into smooth organic cotton backing Faux sheepskin: most similar to a sheep fleece, yet without the skin Premium Eco-Wool batting from sustainable USA wool Backing made of 100% organic cotton grown in India, woven in the USA Fleece fabric is 33 ounces per square yard Global Organic Textile Standard (GOTS) Certified Handmade in the USA Size Options: Bassinet: 18" x 33" Crib: 28" x 52" Twin: 38" x 75" Twin XL: 38" x 81" Full: 54" x 75" Queen: 60" x 80" King/California King: 72" x 84" Benefits of Wool Wool mattress toppers are healing, breathable, and good for circulation. The Happy Lamb Fleece Topper can offer significant pressure point relief. It is therapeutic for those who are in bed for long periods of time, or who are prone to bed sores. This topper may also be helpful for those with fibromyalgia. The Happy Lamb Fleece Topper is used to create a natural sleeping surface, and for softening a bed. Studies have shown that your heart rate is lowered when you sleep on a natural surface, resulting in a deeper sleep.