This organic wool is GOTS certified and is a beautiful and naturally resistant to bacteria, mite, and even water. Wool is a natural barrier to keep baby dry and comfortable. Used between fitted sheet and mattress or futon or alone Washing instructions: Hand rinsing cool water, use very little if any mild detergent, lay flat to dry. 100% organic wool milled and carded in USA Sizes available: Small - 26x11, 26x12, 27x11, 27x12, 28x11 Medium - 26x13, 27x13, 28x12, 29x11, 29x12, 30x12 Large - 28x15, 28x16, 29x15, 29x16, 30x15, 30x16 *Futon is not included* Care instructions: hand or machine wash delicate, cold water and dry medium heat, dry completely before u