Bebe Bamboo fitted crib sheet is made with bamboo, a natural fiber that is organically grown without pesticides and little to no water. Naturally more breathable with superior temperature control capabilities compared to regular cotton, providing warmth during winter and coolness during summer. Extremely soft, delicate and smooth, perfect for your baby's sensitive skin. Promotes comfortable and restful sleep. Hypoallergenic, biodegradable, antibacterial. Composition: 70 percent Viscose from Bamboo, 30 percent Organic Cotton (Oeko Tex Standard 100). Size: 28" x 52" x 6" (71cm x 132cm x 15cm) (fits standard crib mattress). Washing instructions: Machine and hand wash cold, tumble dry low. Do not bleach. Iron if needed.